Well done but you might want to watch the teeth. If she was smiling perhaps her teeth would stick out like that, but not in the way her mouth is open. you can kind of see it makes all of her teeth look a little big; the 'fangs' don't stick out over the lips quite like that.
Besides that one minor thing it's incredibly beautiful.
Very well done. Her outfit is excellent, the only two things that nag me are her left wrist (the one on the right of the picture) and her teeth. Her teeth just don't seem to be in her mouth properly, and the wrist looks a bit awkward, but I think the wrist can be sorted fairly easily, I just can't visualise exactly how right now.