Nice, nice!
I've seen the epic journey of this drawing and I must say the the shadowing worked out really well. The hair and the bones were drawn so impressively and of course, the clothes are impressive too.
It's really a shame that you had to take a picture of this, and that it's drawn with a pen. If you'd like you can use my scanner to solve one problem.
Anyway, I'm going to give you an 8/10 and recommend you for the art portal, I expect great things from you, but do it outside of school :P