He has more on his blog. Similar to what Amber was doing a while back. I think it's a really nice way to explore the look and feel of the film, especially if we're pushing a graphic look. While we're on topic, it'd be a neat idea if everyone could make an image of what they picture the final film to look like. It's something that we pretty much need to know before we lay down our rough/final design packs - character, environments, everything. So before winter break.
I seem to be late in the news, but there's this project going on called SKETCHTRAVEL, and there's some pretty neat stuff in there already. Like the Totoro Forest project, lots of great artists and great art to get inspired by. Click on the above SKETCHTRAVEL link, then sketches, and voilà!