Got pretty much the image done with some tweaking. Here are some color studies of the image. Talk to my buddy Steve who originally design the image to come up with at title. "Squash the Wall Crawler!" Nice.
Steve and I think a green scheme works the best. Here's a sample of me playing with textures:
Getting closer to completion. Added textures and erased with a grunge brush:
Just got my t-shirt design accepted by Threadless. Check it out: http://beta.threadless.com/spiderman/squash-the-wall-crawler/
Here's the final design: