The late Robert Altman, legendary film director.
I had the good fortune of getting a piece into American Illustration this year. The piece was unusual for me in that I normally get pretty anal in how "finished" a final is. My favorite part of the process (after the idea itself) is just plain old fashioned drawing. The spontaneity of a good sketch is hard to beat, and layers of paint won't make it any better, just more colorful. In my opinion anyway.
So I'll be trying out a fresh approach and we'll see if it works. It's fun to change it up sometimes.