Already I have raised a few illustrations in another paragraph, here it is to see if can to advise of since I can be improving this illustration, I am painting her with Painter 7.0 to have if me can to advise some kind of U_U
Fun use of perspective and camera angles on this one. Maybe stronger light source and shadows can help add dimension. I suggest revisiting the tree bark with some reference. Right now it looks more like folds of cloth/drapery to me than tree bark.
My sketchbook is here