That's a tough question to answer. I mean, I've been drawing since I was a little kid sitting on the floor with paper and a box of Crayolas. I haven't really done anything professionally (nothing serious anyways) yet. And I have no art education unless you count highschool art class.
I'm not sure how you'd consider it ambitious though.
Ambitious in that it's full pages instead of strips, hand-drawn instead of computer generated, and you don't completely shy away from things like backgrounds. Keeping something updated consistantly and never losing quality can get hard.