This is a beautiful piece. I love the way it's colored, but the shadows are very dark compared to the main tone. It seems too contrasted, maybe lighten them?
the only other thing that bothers me is her body appears way too large for the size of her neck and head. Not very often you find someone with a forearm larger than their neck.
But the posture and height/weight ratio is superb, as well as the pose. Again, love the colors.
And that hair is gorgeous. o.o
Lovely image. The character is cute and I like the colours. You have a nice anime style and you draw it well. You might try smoothing the shadows out a bit, but they're painted well otherwise. Nicely done.