Electric Sheep is a free open source software that randomly generates fractol images. You can see more images in their archive. My favorite generation is 165.
The name came from Philip K. Dick's novel Do Androids Dream of Electric Sheep. "It is one of the defining science fiction works exploring the ethical dimensions of androids." If you have seen the movie "Blade Runner", that movie is loosely based on this famous book.
The images produced by the software is breath-taking. But the intriguing part is the Electric Sheep itself. The software takes 2 "parent" images, mate them, and produces offspring pictures. So if you like any particular 2 pictures in previous series, you place them together and see what might the combined vision result.
You can see one of my favorite image has 7 children. One seems to be red so I guess the father was red.
If you click on "stats" it has record of when the picture was "born", when it "dies", the time taken for "gestation" (picture formation), and more. You can choose to promote this series, then there is a higher likelyhood this picture will be mated again sometimes in the future. The higher rating picture also gets into "Best Archive", so people who wants to just see the prettiest picture can find those easier.
You can download the software yourself and mate your own images. The images you upload will be credited to you. The project is open source and free, there is a link for donation which is how the site operates. I recommend you to check out their home page and archive.