It looks like you know what you're doing for the most part, nice lighting around the body, especially the collar. However the wings look really flat, probably due to the very even lighting on them. It looks like she's holding them directly perpendicular to our viewing angle, which I don't think could even happen with her body angled that way - the back one would be at least a little further back. It is a fairly alien object to think of how it would act in 3D space, I know I'd have a lot of trouble, but I'm just telling you what I see. I wonder, this would probably look very impressive as a flat-coloured drawing, so maybe it's just getting used to thinking with depth again. Anyway keep it up, if this is where you're starting with this sort of thing I'd love to see where it goes.