First post here, not sure how it works!
Made this animation with eevee a little white ago. The corals are some CC0 assets from sketchfab on which I added colors, the fishes are pictures from pixabay unwrapped over some simple fish models that I created, the skull is also a CC0 asst from blendswap, and I have managed to loop the bubbles in the background (it wasn’t that difficult).
All that rendered in eevee because Cycles is tough on my macbook pro sometimes. Feedbacks are welcome