Great to hear that i could clear the confusion^^
I just decided to not invole letting Nana shrink that much in that form for a simple reason: Bigger fluffy tail on screen xD
Nah just kidding mostly, I just think for mouse its a good visual thing for mouse since its fits her ability and gameplay.
Squirrel has not much to do with the theme of shrinking or being small so i think its not that inconsistent.
And teh lack of clothing is just because it I think it looks visual nice like this, no deep meaning^^"
Hope that explanation helps!