I should've studied. I really planned to study. Instead I did this:
It’s a pencil handiwork with a little PS contrast boost afterwards. Coz apparently scanning takes all the edge out of coloring. Not that I claim the drawing to have an edge to it. It's just that the darkish places didn't look darkish enough after being transported to the computer screen.
Anyway, there must be a place in the world where that counts as a perfectly reasonable way of wasting spending afternoon, right?