I have been doing an uncountable amount of render spheres for the past few years, but rarely got around to build a fully fledged scene.
So here is something in between!
It started as a challenge for me to build realistic water in UE4, something that kept me frustrated for years.
The ground texture was created using Quixel Mixer and the vegetation is part of the Megascans library.
The fish has also been scanned and animated by Daniel Lindblom : https://www.artstation.com/sushifisk