I had a thought the other day, and it may just not work at all, but here it is anyhow:
I saw the other day that many people post fan art/official art from a certain artist within that artist's directory rather thasn putting the images in the directory where the characters the art depicts come from.
Like: I have lots of doujin by Takiji Nao in the Final Fantasy directories, rather than in the artist directory. Would it be possible to post an image in say, the Final Fantasy directory, yet in the image details have a link that references the artist's directory?
I think it would help to try to find some art, especially if you don't know where to look for it, but hey, its just a random thought.