I don’t know if this has been suggested before, but I think an art genre would be really nice to have.
There are a lot of showcase makers out there, including me, and it would be nice to have a category to fit into.
Also it would be nice to have your character wear 4 hats, just because.
A little off topic, but I had an idea a while back to make a series of places where it was just a still camera and some neat imaging and background ambience. I never got anywhere with it, but I think it would fit in this type of genre you’re asking for.
I’ve often thought that there should be something akin to a ‘Showcase’ category, where the point is just to show off what you’ve done rather than have a functional game. That would help me categorize my own games and it would help me find things that I’m interested in, such as castle showcases.