Board Thread:General Discussion/@comment-27428960-20161029172126/@comment-3467648-20161204061440

Greek, remember that you can add multiple categories for the same article, file or image.

My proposal would be something similar to the Song categories from the VOCALOID wiki:
 * Images featuring (Vocaloid character), as a broad category. Example: Images featuring Kagamine Rin, that would encopass all the Rin's character like Gretel, Riliane, Rin Chan, Rin Miroku, Waiter, etc
 * Images featuring (specific character). This would be more specific, but still it would cover both type of images, official pics and fanart.
 * Official illustrations
 * Fanart from official collaborators. That would cover most of the issue discussed here
 * Promotional images
 * Concept Art
 * PV's screenshot
 * Merchandising

So, if we apply my idea, this image should be categorized as: Fanart from official collaborators; Images featuring Kagamine Len; Images featuring Kagamine Rin; Images featuring Riliane Lucifen d'Autriche; Images featuring Allen Avadonia.