Scott Draves has been running a distributed generative art project since last century (1999): http://electricsheep.org/ or https://en.wikipedia.org/wiki/Electric_Sheep for a quick summary.

As well as using a pretty interesting fractal algorithm for the content it uses a genetic algorithm for filtering of results and progression. He posts everything to GitHub too if you're interested: https://github.com/scottdraves/electricsheep https://github.com/scottdraves/flam3