The hands looks awesome, first off. Especially knowing how difficult they can be to draw sometimes. The hair looks quite nice as well, and I like the shading you put into the part next to her chin. Her right arm seems a bit short though, in comparison to the rest of her body. And I'm not entirely sure what it is she's brushing in her hands there, though from the title of the piece I can only assume.
I also think there should be more of a shadow established. Using the entire right half of the picture as negative space is nice, and I like how you did it, but I feel that the presence of a more pronounced shadow would help strengthen the piece.

It's a good composition, I'd say. Not quite your best work, but it's by no means bad at all. I look forward to seeing more work from you! ^^