I'm real happy with how this turned out. Of course, I'm not going to pretend like I free-handed it. I copied it directly from concept art by the artist Joe Madureira, even going so far as to trace the outline. Check out his work-- Its awesome.
I like drawing in charcoal a lot because of the looseness and the fact the you can use your fingers. I never thought that I would be able to draw in pen, much less enjoy it. Its exact and meticulous, two things that I am not. Amazingly, I really enjoy drawing with pen. Things that you draw in pen always have a clean, official sort of air about them.