The comic creation process always tests the mettle and knack for creativity of the artist. Sure, you might have a few original ideas when you start, but as you keep making them, the well of ideas runs dry, and you have to make stuff up out of seemingly nothing. Ironically, most comic artists draw inspiration from mundane, regular life stuff, a place which most of us try to get out of by consuming these same comics, which is even doubly ironic.