and you can use it as a live wallpaper on android, with the colors shifting in sync with the time of day (so it gets sunsetty around IRL sunset, for example). and you can have it change to a random image once a day, once a month, once an hour. the most recent thing added was ambient soundscapes for each scene. highly recommended!
Mark's work is bananas. He did a talk a few years back at GDC and for part of it he gave an overview of this kind of art. (Link is timestamped)