I'm not buying the wings. They're translucent in some places and not others, which, well, that's your choice and obviously a deliberate one, but it doesn't feel right to me.
Also, and far more important, the wings are square to the camera, and she is not.
Her shoulders are twisted, right? They're the same height, but the shoulder camera right is closer to us than the shoulder camera left.
This means that the wing on the right should be quite a lot closer to us, out at the wingtip, and the wingtip on the left should be quite a bit further back, to really support the illusion that they are her wings.
Ok! I think maybe more rotation. Maybe dip (lower) the camera-right wingtip a bit as well? I don't see WHY it should be dipped from her posture, but it just feels like it ought to be.