Well ! Color is very good But i think u have a tiny prob, the point is her hand, it doesn't wrong, it's just look unnatural !!! Anyway, good job !!!
RUuuuuuu.........
I agree the coloring is quite nice, but you might want to work on your anatomy some more. Her entire body seems pretty stiff and her arm looks like it's just hanging there limply at her side. I think you went a bit overboard with the highlights in her eyes too, so you might want to also study how light reflects on objects such as our eyes.