Happy Bday Princess

First off it is very kind of you to draw something for a friend for their birthday.

The quality of the piece is very good, as it is a vector software. This image would have been more striking, however, if you used varying line widths instead of keeping the black lines very fine. Also the shading just is not right. The skin is way to dark and the tone is just isn't right. What appears to be the hilights look sickly like boils on the skin. Try keeping the hilights curved with the body. Try adding more hilights to the hair because it looks flat.