Here's a suggestion: Could you maybe make a multi-game/group folder?
I've submitted a pic of two different gijinka from two different games, and another one with three, all from different games, and Zelina recently submitted personifications of the different lands in Zelda, for example, Hyrule, which exists in nearly ALL games. (Not to mention my Hookshot gijinka is based off the various designs from different games)
For group pictures, or gijinka that could apply to more than one game, the only current choice is the featured folder. Nothing wrong with that, but if there's a catch-all folder for that sort of thing it should have its own folder.