You'd probably be better off converting one of your stories to script format (comic script is similar in format to screenplay, differing only in that you're describing a frame of action and not a fully articulated scene) and requesting an artist to draw it. Artists like to believe that their talent with a pen and brush makes them experts in all of the arts, so they tend to be a little snobbish about allowing writers to do scripts "for" them.
I vaguely recall someone looking for short web-projects so s/he could practice a variety of art skills. You may want to scroll through the thread list here.
What I lack in sincerity, I make up for in sarcasm.