That's What I Call a Pumpkin
Ray Villafane is a professional artist and sculptor. He's done work for Sideshow Collectibles, Reflex Publications, DC Direct, McFarlane Toys, and Bowen Designs.
Apparently in his spare time, he'll carve a pumpkin or two.
I found these on a flickr account after reading a post by Ray's brother who was bragging (justly) about Ray's talent as a pumpkin carver. I did a little google detective work and found Ray's website.
To see all of the pumpkins and a 'how to' (ha ha ha...right), check out Ray's pumpkin page on his website.