Damn those are good! What do you use? Were you in art school? I only use pencils, since I don't know any other way. And I'm hoping to learn photoshop if I have the time.
Those are on my crappy tablet lol. Like I said I'm still trying to develop a style that works on it, I still think I'm far better on paper but I hate constantly erasing and I'm spoiled. I like that you showed your are, I really like it and it makes me want to do better
I might practice at my desk at work with a Pen and Printer paper