After making the Mangrove Reef Piece I watched some more underwater footage of Coral Reefs and realized some more polish and framing changes could be applied to the sea life assets I made.
First I wanted to push the reef further underwater and place it near a dropoff to add a more convincing layout. Then I did some more polish for the large schools of fish by modifying the curl noise and spring force parameters in the niagara system to add more of a captivating naturalistic movement of the schools.
After that it was just an overall polish pass for some of the animations, specifically the sharks and the underwater atmospheric perspective.