"Poor quality art is just as bad as a cluttered text box."
So those of use with poor art skills are screwed...
From Request Card Art "Read this First" post:
"Very simply put; if it's not in the forge or higher, the chances of it ever being used are very, very slim. (In fact, I personally don't bother with cards that aren't in the Armory.) Until it's in there, just a little MSPaint picture you made yourself should be fine. I know it probably won't be much of a looker, but hey, it's about the idea up until there, the Armory is for the polishing."
So, don't request art, and if you're art is crappy don't bother? Seems kinda contradictory to me