For those interested in caricatures, www.mccartneysdogs.com does a great job. He has all kinds of breed-specific stock stuff, but does custom stuff also.
Kris got a picture of Cooper and Isis done at a dog show. Took him about 20 minutes. She just gave him a couple pictures and told him Cooper did conformation and she was getting Isis into agility. Please forgive the picture quality. The flash would create a glare on the glass and when I took it without a flash, the color was way off. But you get the idea.