It’s probably not a first for comics in general, but it is a first for me. In order to get the artwork right on an upcomic strip, I had to finger-paint one of the panels.
I considered, ever so briefly, using india ink. Then I looked at how crappy and smudgy Chopping Block comes out (Lee Herrold is a total hack. I’ll never understand why his stuff is so popular, even with the Goth crowd), and decided that using poster paint would be more professional.
The piece is drying, awaiting scanning now.