I think it's a great choice for a character! I do have some feedback from just the preview you've shown:
First is smooth shade the poor mouse, right click on the model in blender and smooth shade it, auto smooth at 180 degrees works too
Second is maybe add some recolorability to them? This is more complex but i recommend you do.
It's good work but overall, some polish would go a great way making it a great cs mod.
I cant test rn as im away from the computer so if you did that already, forget what i said :O