I remember when I was in ''working'' for a tattooist. But it was morel ike, he taught me to draw and one time he taught how to do this kind of shading... Starting from eye, moving to nose, brow and so on... Not suddenly hopping from eye to clothes. (For example) THis tutorial brings back good memories
Seriously, you're so talented! You should set up a booth at an anime convention and sell your work! Also! I demand more Naruto! I wanna see Naruto (x Kiba, if you do pairings that is!)! Nobody I've seen can draw them like you can and nobody GOOD draws narukiba (sad face).