A Ren Sonja sketch I just did at Wondercon a few weeks ago. 11"x17" pencil with marker finishes. total time spent on piece, between an hour to an hour and 1/2. It's somewhat uncommon for me to be this elaborate with a sketch at a con, but this was a special circumstance.
Special thanks to Rick for getting me a scan of this so that I could show all you good people.