A comic book is the opposite of a cartoon. In a cartoon, you want to simplify the idea, so when they look at it at a glance, they get it. Boom. Simple. Direct to the point. But when you're drawing Groo, now it's a narrative, a story. You want the viewer to get involved in the story. You want him to feel like he's in the town to follow your main character. So I love to add lots and lots of things in it. Things that people will enjoy going back to and say, "Oh yeah, that's how a market must have looked in this fantasy world, with people selling meat here and dishes here."
Sometimes, you start with the drawing and then the gag comes to you in the middle of it. That is when you start working on the solution of the gag, which is composition, placing, equilibrium, and character design.
Once you've established where you are, you go to the character and elaborate on expressions and action.
