Something fishy.
This tile didn‘t start out to be an underwater scene. I was trying to decide which tangle to put in the space where the “eye” is. In the process of rotating the tile around and thinking, I realized it looked a bit like an underwater scene and the Shattuck reminded me of scales. So I added the “eye” (which is now a tangle called Caviar!) and the Fescu to look a bit like a fin. That completed the illusion for me.
Zentangle drawn on Official Zentangle tile using a black, Micron pen.