Yeah uhh the feet well... When modelling a character it's not uncommon for the artist to have the character in a base "nude" form first before modelling on clothing. Usually if the character was not intended to take their shoes off, the faces for the feet would just be deleted. However on Mable here they seem to have not put a "watertight" seal from her shoes onto her feet as the toes can be seen from looking at a specific angle (near impossible in game really). So I guess they didn't bother trying to meld her toes together to make it look as if she is wearing socks.

This could be because they rushed that and figured nobody would bother looking at her toes, but melding her toes would have meant less polygons. Or maybe, somebody at Game Freak just really likes feet.

Now if I were making this model I would have melded her shoes onto her feet so there is no need to have her toes modelled.

They're not called Game Normal I guess

Hideo Kojima, why?

I don't know if I should be shocked that they modeled her toes.

She is very pretty! :)