Tash, I love the Ballet works, they are so dreamy and free. However, with the hands, I would contrast the light a little more- put in subtle whites and maybe even soft yellow highlights on the ridges of the knuckles -speaking of highlights and light sources, make the light source more definate- is it coming from the left, the right, the top, what color light is it and what effect does it have on the hands? -Is the light like a moonlight- silverly blue (that would look really beautiful upon the keys!

). When the light source is more defined, you can develop the shadows of the hands better. Spread/darken the shadows not with black, but dark, and I mean DARK greens and blues. However, they must be easily noticed they are not a part of the back ground, so even dark browns would help.
What medium did you use for this work?
I finished Art 30 here in Canada with 98% if that means anything...
donjuan