For me, the most diffcult part of drawing living people is not getting noticed. Now I'm trying to sketch with a pair of Sunglasses but it doesn't work every time, specially at night. The HULK is a bonus, he wasn't there.
Besides my work in the studio, this is what I've been doing. No graphic novels, no secret projects, just having fun with sketches. After I got the Acme Novelty Datebook Volume Two, I thought I should do a lot more.