This is really wicked. You know, I think you have a really amazing pencil style. I hope you don't take offense to this or anything, but I'm really digging pencils like these over your cleaner, finished works. It just has a certain line quality and life to it that I really enjoy, and it compliments your style very well! Loving the shading too. Have you ever tried coloring anything without inking it?
My only crit would be his arm in the last panel--I think the perspective's a bit off, and it could use some motion lines. Other than that, looking good!