I'm seriously impressed by the ability to do this digitally. I mean, I'm an artist, but my photoshop skills pretty much stop at resizing images so my hat's off to you!! Are you using a drawing tablet?
I creeped through your DA gallery, and now I'm really curious to know what your process is... if I'm not mistaken, you make physical drawings and then scan them in? Share, if of course you don't want to keep your process under wraps... which if that's the case I completely understand.