I personally think you did well on this except the hair does not have the detail the rest has, almost as if you rushed it. I didn't realize the wings were there until you mentioned it... I thought the missing one was some kinda fungal infection or part of the background. Overall, 8/10! This is a really cool piece, and if I owned it, I'd hang it up.
(Besides, I have no right to criticize because I rush everything I do. I'm probably the most impatient person on here...)