I like your color choice. Maybe wings could work if they were transparent and contrasted enough. I'd probably try pink, modest sized wings. Perhaps since she's jumping and making motions they should be up and working instead of static behind her also.
I think her right arm bothers me (her right, our left). I've been struggling to think of why. Best guess I can figure is that the shading is fine if it's perfectly straight, but I feel like the folds don't reflect that, like she'd be bringing it forward given the way it flows back from above the wrist. But if she is bringing it forward, maybe there should be at least a subtle fold where the forearm and elbow meet to show the fabric is being pushed. Perhaps all of that is wrong and you wanted the cloth billowing in the wind.
Anatomy seems fine to me overall.