Well, here's mister big, influential Will Eisner. He made works like The Spirit and A Contract with God, and allegedly his work established the graphic novel as a form of literature.
OK, even at this size, I'll grant you that looks pretty cool.
Julie Doucet is a Canadian cartoonist and is known for My New York Diary and Dirty Plotte. According to Wikipedia, her work focuses on "sex, violence, menstruation and male/female issues." Charming!
David Beauchard is a French cartoonist and one of the founders of the comic publishing company L'Association, most noted for the graphic novel series l'Ascension du Haut Mal. This guy seems to be a big an of large ammounts of black.
Feininger was a cartoonist, charicaturist, and expressionist. Joy. His comic work is apparently not worth talking about, for how much more often his other artwork seems to show up.