Annoyingly, I only heard about this today - and late today at that. Still, it sounds pretty great and since I'm still on a bit of an artistic buzz from Expo, I figured I'd give it a go. One piece I've really wanted to draw is a really atmospheric painty Fallout 3 piece. I've been playing New Vegas a lot lately but I love the look and feel of 3 so much. I'll probably use this as one of many thumbnail doodles to try and get it right.
I know it's not technically a sketch but it is just a pixelpaint doodle smushed around a bit, so I'm sure it counts. :P