One of my new experiments turned out really cool, so I created a couple of artworks with this technique. As I’m a new user I can only embed one image, so I’ll post the others in the comments.
The experiment was about underwater caustics and volumetrics, as you can see.
I really like the underwater life of these pieces, so I might try animating them in the future. The only problem is the render time… it takes a lot of bouncers and samples to look good.