Looks really nice. I like the one on the right with the lighter outline on top.(you uploaded a new image while I was posting) You've got the basics down, good luck with the rest.
He's hair is long enough you might do a little animation. Not just the swing in the back but put a little bounce in the bangs. Up and out just a little in the stepping frames.
Hmm, looks like a certain one-winged angel. What I don't like about the outfit is the shoulder pads and the lower part of the jacket. It's shaped weird. Also I think the pants could be a different color, too much blue. But the shading is done right.
I disagree with Redman, the shading on the sleeves are perfect. People like to go heavy on the shadows were there aren't needed.