She has a bat wing arm, also be aware that the length of that arm is longer than the other (extend her arm). Also the rough sketch has a better design than the actual line art, so you should go for the more chubby character on the sketch, and the hair shouldn't show that much on the back or it will make it look like an alien head (from the movie) which makes also to look that her neck is actually attached to her jaw and not her head. Also, her eyes are looking at two different directions (cover with your hand one eye and look where its looking, repeat with the other) and her boobs are quite pointy. I would also recommend you to go all over curves and no pointy edges, as you are already 90% curves, which give weight to the character make it more chubby, but its awkward when one shoulder is more pointy. Finally I haven't take the time, but you should make sure the head sizes of the drawing, its supposed to be 3 head size, but there is maybe a little thing off on it, but I don't want to open photoshop to be objectivity sure about it.