I played air brush just bit this weekend. And I was a little disappointed that it didn't solve my highlight/white pencil problems. Not really sure what to do about it....I want a very crisp highlight with pencil, and not soft with the airbrush. I guess I'll just have to continue testing it out!
Here's the Vader, and one with a bit of digital enhancement and cleanup. He was my first doom-to-fail, as I didn't spend too much time on the drawing.