The hair...you need to make it a little bit over the base of the head and don't make it look like you just drew bang on there. It needs way more strands. The nose isn't in the center, and I can't tell which way she's facing. Her nose is facing the opposite side of the eye, which makes it harder to tell. Her head is a bit too round, and the left side of her body looks a straight line, and the right is shaped more. The dress has no wrinkles.
Sorry if I sound mean, I'm trying to help you. :/