I just saw a post on cartoon brew that had artwork by Tom Whelan, which were really cool.
Another thing to check out is Bobby Chiu's book called "The Perfect Bait". It was inspirational and positive, and kind of reminded me of a quote from Jim Henson:
"I believe in taking a positive attitude toward the world, toward people, toward my work. I think I'm here for a purpose. I think it's very likely that we all are, but I'm only sure about myself. I try to tune myself in to whatever it is that I'm supposed to be, and I try to think of myself as a part of all of us - all mankind and all life. I find it's not easy to keep these lofty thoughts in mind as the day goes by, but it certainly helps me a great deal to start out this way." --Jim Henson.