funny, i thought i commented on this one already,oh well :P
i like the style of the wings, sometimes when drawing wings it can be hard to make them look properly attached to the character, but they real feel a part of her so thats nice. the unusual additions of solid black lines is a bit strange, is it a WIP?
the proportions are fairly good, but i think the upper body is a bit too big, or the hips are too small, she looks a bit top heavy. also not sure if you went off the page for the feet or not, but try to avoid not drawing hands and feet, its good practice.
but nice overall, i really like the wings :P