For making these mice in the walnutshell you will have to get my Selections.
Get them here and zip them up in your PSP Selections folder.
The zip also includes accessories, such as the text, lantern, screw
and misteltoe with a bow. Zip them up in your PSP Image folder.
When you want to use them, you have to look in your Layer Palette
to find the different parts.
You will also have Craquelure in the zip. Zip it up in your
PSP, Plugin Folder for Texturizer. The filter Texturizer is here.
Unzip it to your PSP Plug-in folder. You can choose to install the whole filter
 or just Craquelure, if you have the filter already.

Start with a New Image 250x250, Transp, 16 mill.
New Layer. Call it Shell. Selections, Load from disk, mice_in_nut.shell.sel
Flood Fill with color #916452. Selections, Modify, Contract by 1.
Flood fill with color #C29D86. Selections, Float. Effects, 3D, Cutout as below.

Deselect.
Look in your PSP Plugin folder for Texturize, Craquelure.
Make these settings 15 - 1 - 6.
If you don't want to use Texturizer,
You may use these settings instead. Effects, Artistic, Brush Strokes as below.

Then the shell looks like this.

New Layer. Call it Nutpart1. Selections, Load from disk, mice_in_nut.nutpart1.sel
Flood Fill with color #916452. Selections, Modify, Contract by 1.
Flood Fill with color #AB8167. Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Nutpart2. Selections, Load from disk, mice_in_nut.nutpart2.sel
Flood Fill with color #7C4A34. Deselect.

New Layer. Call it Nutpart3. Selections, Load from disk, mice_in_nut.nutpart3.sel
Flood Fill with color #402716. Deselect.

This is what you will have now.

New Layer. Call it Logs. Selections, Load from disk, mice_in_nut.logs.sel
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as before. Deselect.

Get the screw you got in the zip. Copy and Paste it as a New Layer.
Call the layer Screw. Place it on the log, with your Mover, like this.

Layers, Merge, Merge Visible. Call the Layer Nut.

New Layer. Call it Dress. Selections, Load from disk, mice_in_nut.dress.sel
Flood Fill with color #A2C6E8.  Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Rim. Selections, Load from disk, mice_in_nut.rim.sel
Flood Fill with color #F2C0C2.  Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Paw1. Selections, Load from disk, mice_in_nut.paw1.sel
Flood Fill with color #AE8B5A.  Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Paw2. Selections, Load from disk, mice_in_nut.paw2.sel
Flood Fill with color #BC9E74.  Selections, Float. Effects, 3D, Cutout as before.

New Layer. Call it Arms1. Selections, Load from disk, mice_in_nut.arms1.sel
Flood Fill with color #8EBEEA.  Selections, Float. Effects, 3D, Cutout as before,
but change color to #365572. Deselect. Effects, 3D, Drop Shadow as below.

New Layer. Call it Armrim. Selections, Load from disk, mice_in_nut.armrim.sel
Flood Fill with color #F2C0C2.  Selections, Float. Effects, 3D, Cutout as on Rim.

New Layer. Call it Ear1. Selections, Load from disk, mice_in_nut.ear1.sel
Flood Fill with color #9B6826.  Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Earline1. Selections, Load from disk, mice_in_nut.earline1.sel
Flood Fill with color #713B12. Deselect.

New Layer. Call it Head1. Selections, Load from disk, mice_in_nut.head1.sel
Flood Fill with color #72491E. Selections, Modify, Contract by 1.
Flood fill with color #B27D45. Selections, Float. Effects, 3D, Cutout as on Ear1.
Deselect.

New Layer. Call it Mouth1. Selections, Load from disk, mice_in_nut.mouth1.sel
Flood Fill with color #72491E. Deselect.

New Layer. Call it Cheeks1. Selections, Load from disk, mice_in_nut.cheeks1.sel
Flood Fill with color #C22712. Deselect.

New Layer. Call it Eyes1. Selections, Load from disk, mice_in_nut.eyes1.sel
Flood Fill with black color. Deselect.

New Layer. Call it Dots1. Selections, Load from disk, mice_in_nut.dots1.sel
Flood Fill with white color. Deselect.

This is what you will have now.

New Layer. Call it Tassel1. Selections, Load from disk, mice_in_nut.tassel1.sel
Flood Fill with white color. Selections, Float. Effects, 3D, Cutout as before,
but change color to #4B54AF. Deselect.

New Layer. Call it Cappart1. Selections, Load from disk, mice_in_nut.cappart1.sel
Flood Fill with color #630505. Selections, Float. Effects, 3D, Cutout as before,
but change color to #FA1E1E. Deselect.

New Layer. Call it Cappart2. Selections, Load from disk, mice_in_nut.cappart2.sel
Flood Fill with color #920800. Selections, Float. Effects, 3D, Cutout as before.
 Deselect.

New Layer. Call it Cappart3. Selections, Load from disk, mice_in_nut.cappart3.sel
Flood Fill with white color. Selections, Float. Effects, 3D, Cutout as before,
but change color to #4B54AF. Deselect.

New Layer. Call it Ear2. Selections, Load from disk, mice_in_nut.ear2.sel
Flood Fill with color #9B6826.  Selections, Float. Effects, 3D, Cutout as on Ear1.
Deselect.

New Layer. Call it Earline2. Selections, Load from disk, mice_in_nut.earline2.sel
Flood Fill with color #713B12. Deselect.

New Layer. Call it Cappart4. Selections, Load from disk, mice_in_nut.cappart4.sel
Flood Fill with white color. Selections, Float. Effects, 3D, Cutout as below.

 Deselect. Retouch Tool, Smudge as below.

Smudge the upper part a bit, to make the contour blend better.

New Layer. Call it Nose1. Selections, Load from disk, mice_in_nut.nose1.sel
Flood Fill with color #E87C8E. Selections, Float. Effects, 3D, Cutout as below.

Deselect.

Close layer Nut. Layers Merge, Merge Visible.
Call the Layer Mouse1. This is what you will have now.

New Layer. Call it Sweater. Selections, Load from disk, mice_in_nut.sweater.sel
Flood Fill with color #672E23.  Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Paw3. Selections, Load from disk, mice_in_nut.paw3.sel
Flood Fill with color #AE8B5A.  Selections, Float. Effects, 3D, Cutout as on Paw1. Deselect.

New Layer. Call it Paw4. Selections, Load from disk, mice_in_nut.paw4.sel
Flood Fill with color #BC9E74.  Selections, Float. Effects, 3D, Cutout as on Paw1. Deselect.

New Layer. Call it Arms2. Selections, Load from disk, mice_in_nut.arms2.sel
Flood Fill with color #8D4033.  Selections, Float. Effects, 3D, Cutout as below.

 Deselect.

New Layer. Call it Ear3. Selections, Load from disk, mice_in_nut.ear3.sel
Flood Fill with color #9B6826.  Selections, Float. Effects, 3D, Cutout as on Ear1. Deselect.

New Layer. Call it Head2. Selections, Load from disk, mice_in_nut.head2.sel
Flood Fill with color #72491E. Selections, Modify, Contract by 1.
Flood fill with color #B27D45. Selections, Float. Effects, 3D, Cutout as on Ear1. Deselect.

New Layer. Call it Mouth2. Selections, Load from disk, mice_in_nut.mouth2.sel
Flood Fill with color #72491E. Deselect.

New Layer. Call it Cheeks2. Selections, Load from disk, mice_in_nut.cheeks2.sel
Flood Fill with color #C22712. Deselect.

New Layer. Call it Eyes2. Selections, Load from disk, mice_in_nut.eyes2.sel
Flood Fill with black color. Deselect.

New Layer. Call it Dots2. Selections, Load from disk, mice_in_nut.dots2.sel
Flood Fill with white color. Deselect.

New Layer. Call it Nose2. Selections, Load from disk, mice_in_nut.nose2.sel
Flood Fill with color #E87C8E. Selections, Float. Effects, 3D, Cutout as on Nose1. Deselect.

New Layer. Call it Tassel2. Selections, Load from disk, mice_in_nut.tassel2.sel
Flood Fill with white color. Selections, Float. Effects, 3D, Cutout as on Tassel1,
but change color to #4B54AF. Deselect.

New Layer. Call it Cappart5. Selections, Load from disk, mice_in_nut.cappart5.sel
Flood Fill with color #630505. Selections, Float. Effects, 3D, Cutout as on Sweater.
 Deselect.

New Layer. Call it Cappart6. Selections, Load from disk, mice_in_nut.cappart6.sel
Flood Fill with color #AA0D02. Selections, Float. Effects, 3D, Cutout as on Sweater.
 Deselect.

New Layer. Call it Cappart7. Selections, Load from disk, mice_in_nut.cappart7.sel
Flood Fill with white color. Selections, Float. Effects, 3D, Cutout as on Cappart3,
change color to #4B54AF. Deselect.

New Layer. Call it Ear4. Selections, Load from disk, mice_in_nut.ear4.sel
Flood Fill with color #9B6826.  Selections, Float. Effects, 3D, Cutout as on Ear1. Deselect.

New Layer. Call it Earline3. Selections, Load from disk, mice_in_nut.earline3.sel
Flood Fill with color #713B12. Deselect.

New Layer. Call it Cappart8. Selections, Load from disk, mice_in_nut.cappart8.sel
Flood Fill with white color. Selections, Float. Effects, 3D, Cutout as below.

Deselect. Retouch Tool, Smudge. Settings as before.

Smudge this part to blend better.

Close Layers, Nut and Mouse1. Layers Merge, Merge Visible. Call the Layer Mouse2.

This is what you will have now.

Now to the roof.

New Layer. Call it Housetop. Selections, Load from disk, mice_in_nut.housetop.sel
Flood Fill with color #723828. Selections, Modify, Contract by1.
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Roof1. Selections, Load from disk, mice_in_nut.roof1.sel
Flood Fill with color #723828. Selections, Modify, Contract by1.
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Roof2. Selections, Load from disk, mice_in_nut.roof2.sel
Flood Fill with color #723828. Selections, Modify, Contract by1.
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Roof3. Selections, Load from disk, mice_in_nut.roof3.sel
Flood Fill with color #723828. Selections, Modify, Contract by1.
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as on Roof1. Deselect.

New Layer. Call it Roof4. Selections, Load from disk, mice_in_nut.roof4.sel
Flood Fill with color #723828. Selections, Modify, Contract by1.
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as on Roof2. Deselect.

New Layer. Call it Roof5. Selections, Load from disk, mice_in_nut.roof5.sel
Flood Fill with color #723828. Selections, Modify, Contract by1.
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as on Roof1. Deselect.

New Layer. Call it Roof6. Selections, Load from disk, mice_in_nut.roof6.sel
Flood Fill with color #723828. Selections, Modify, Contract by1.
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as on Roof2. Deselect.

New Layer. Call it Roof7. Selections, Load from disk, mice_in_nut.roof7.sel
Flood Fill with color #723828. Selections, Modify, Contract by1.
Flood Fill with color #995D3F. Selections, Float. Effects, 3D, Cutout as on Roof2. Deselect.

Get the text you got in the zip- Copy and Paste it as a New layer. Call the layer Text.
Place it with your mover on the wood like this.

New Layer. Call it Icicle. Selections, Load from disk, mice_in_nut.icicle.sel
Flood Fill with white color. Selections, Float. Effects, 3D, Cutout as below.

Deselect.

New Layer. Call it Whiteroof. Selections, Load from disk, mice_in_nut.whiteroof.sel
Flood Fill with white color. Selections, Float. Effects, 3D, Cutout as below.

Deselect.

Retouch tool, Smudge, settings as before, but change size to 4. Smudge
where the icicles meet the roof. Blend it nicely.

Get the lantern you got in the zip. Place it at the end of the roof.
Duplicate the layer. Image, Mirror. Place the other lantern at the other end of the roof.

Get the misteltoe  you got in the zip. Place it at the top of the roof.

Have a look at your picture. Is there anything you like to change, do so now.

Layers, Merge, Merge Visible and you are done.