nice work MelleeBiatch,
get some ref pictures of trunks in the same pose or in some way that angle, then just look at the shadows, make some copys of your picture first to try out the shading.
Thats what i did when i was new at shading ^_^
I think after i get a Wolverine and Gundam seed or what ever i was asked to draw, I will try and get a DBZ character done, not sure yet, but Vegeta is my fav character so i may do one of him fighting or something.
Again nice work
Oh just noticed the ear hold, its too bold its stands out too much you should have just rubbed the pencil over the ear hole lightly.