That's a really cool modification! I'd thought of the game as more of like a mental exercise for people to do occasionally, but I like the idea of grounding it further with more physical ritual elements.
The artist is Jr Korpa on Unsplash, and has a ton of fantastic abstract stuff permitted for commercial use. Normally I pull art from a ton of different sources, but Korpa's stuff fit the project really well, so I went all-in on it.