See Seeker's pic below. I always imagined that Naranjon was a yellow haired pirate type guy. He usually has some sort of goatee b/c he thinks their bad ass. He wears monochromatic clothes b/c after creating his works of art using his soul the color is literally sapped out of him. He also has 12 inch finger nails that he uses to molest my grandma, and he has pink eye.
I picture Naranjon as the Mafioso picture he drew on the portraits board, mixed with Thom Yorke. This might be a good idea for a new drawrings board. I think everyone has a picture of how an artist looks in their minds eye. Just don't draw Mohammad.