Her color palette did, in fact, turn out nicely. I feel your character's faces are the strongest aspect of your style and that you're doing just fine in that department. Foreshortening always helps a piece feel more exciting and does just that here, that being said with such strong emphasis on the hands make sure to practice drawing hands. I'd say the fingers she's holding out need to be consistent in their width and that women tend to have more slender fingers than men. Let cute hands compliment that cute face. That said hands can be tough sometimes so don't obsess over perfection as long as you're making progress. Also da booby do be lookin good in this. Good job overall.