Not a feature as much as a long term goal, but having this site have TONS of sets to use. Expand into a variety of places, like renaissance paintings, anime art, trees and plants, etc.
And also the ability to really focus on what you want to practice. It's already great in terms of narrowing things down, but if I had the option just study folds in cloth for 20 mins that would be amazing. Maybe there's a way to let people tag images and then you can choose to see images with only certain tags?
