Illustration isn't design. It isn't typesetting. The experience that I draw from for my illustrations is accessed from a very different part of me than design work. My illustration is more about humor, my humor. It's very self-indulgent - most often they mean more to me than most other people. I hide bits of myself in the subject matter that I'm illustrating. My own opinions or perspectives.
"Illustration and graphic design are like bananas and oranges sharing the same fruit bowl." - Steven Heller