Been meaning to upload this a couple of weeks back, but things have been pretty busy lately. I cleaned it up free hand using technical pens and then used live trace on Illustrator to make it consistently black throughout. Normally, I wouldn't rely on vector software just to clean up freehand pen work, but I did a pretty lousy job erasing the pencils and there was a lot of clean up to do anyway.

Materials: Technical pen, Adobe illustrator.

Blogspot: http://markkilkelly.blogs pot.ie/2012/07/nerd-hulk-
line-art.html