Not an artist, these are just my honest thoughts:
-The head looks oversized (it looks like a Chibi head but on a normal human body instead of on a Chibi body) - this might also be partially due to my next point, too.
-The neck is thicker than most necks I've seen in real life, both on men and women.
-The skin looks lackluster (like it's just *there*, there's no shine to it)
-The breasts looks like the right one (from our POV) is correct, but the left one (again, our POV) looks like it's trying to split from the body and form a new, independent body (that is possibly just the angle).