Basically just tags, but the questions branch based on the answers. Photo vs Graphic, Portrait vs Landscape, Person/People/No one, etc.

Eventually I'll add facial recognition to the photos with one or more people, but I've not felt like delving into that can of worms. I tried it years ago. I've contemplated just training my own model off of the few 10s of thousands of images I have to automatically tag them in a single pass since I have everything labeled already.