The Demonology 101 creator hit out at Guillem March's racy illustration on Twitter, branding it offensive.
"I don't even care if that drawing is official or whatever, I can't believe someone drew it and thought it was okay to show people. People can see that drawing! People with eyes," she wrote.
"Why do I even fight so hard to make my art look good when someone else drew that? As a person with eyes, I am a little offended."
Fellow webcomic artist Kate Beaton echoed Hicks's sentiments, poking fun at the drawing with a series of sketches posted over on her Twitter account.
DC Comics' Catwoman has stirred up controversy in the past by depicting a sex scene between the title character and Batman in issue #1.