Simplify the wings.
Wings are very bandily shaded. Make far wing a bit darker (don't use yer pure white on it).
Much banding throughout.
Very bald.
Balding is occurring.
Shoeless entry, illegal. Please put on shoes before entering the restaurant.
You're showing a half sprite base - they're bald yet clothed. Or will every single sprite using this base have clothes and wings?
Redundant flesh shade used on heads.
Woman's chest appears hairy. Cleavage definition wonked. Use lighter shade. Lower cans.
Lighten woman's eyebrows.
*Flush

I lol'd at the presentation of your critique, very amusing =D

Addressing the "Half sprite base" it's an equippable/customization system in it, the fully  un-clothed one are in my archive ready to use, and this is simply a mock-up with two parts of the total customized whole. 

Good idea no the far wing being darker, i'm going to look into that