This one was done fairly quickly. I've been trying to add a more traditional feel to my digital illustrations without completely overdoing it. The washes I had on this image were super super dark at first, but then I pushed them back a lot in the final image. The illustration looks pretty cool on a shirt, too!
Edit:
The illustration was looking a little too cold now that I've been staring at it for awhile, so I added some warmth to fit the mood better.
Edit, again:
Ok, last revision: Added highlights.