Because my butt's home painting. That's the only way you can do it. You can't do all the shows you have a chance to do, because if you do, you burn yourself out and you won't have time to paint. Since then, it's been an interesting journey, it really has. You mentioned computer-aided design.
Some people can do it backwards and forwards.
Some friends of ours who use it for Christmas stuff and do some amazing stuff. What I do is a pencil thumbnail, which is a quickie sketch. I'm getting into doing more studies, because I've learned that the more studies I do, the less I screw up later on. After I have a finished little sketch, I'll start pulling for reference. You can go on the Web and find wonderful photographs of people and critters.