The art for all 4 pieces are rather well done. I would have to say this one is my most favored of them; the details of the hair and the shirt really give a sense of depth with the overlaying folds. Although, I would have to say that seems to be the weak point of this picture. While the lack of shadows gives the impression she's in direct light, the almost minimalistic shading makes the image seem a bit flat. I would add some shading around the neck, and perhaps add some shading to esentuate the folds of the shirt.