This was a really fun game. When I played, I almost thought the scoring system glitched out when I was getting such high scores but looking at the stats and how it calculated my score seemed to explain it. I did a very similar game about taking photos of fish to get a score.
I would love to know how your photo system worked. Mine was a simple collider in front of the player that kept track of all the fish in the volume, then returned a score based on how many were there when the player pressed the take photo key.
I would also love to know how the fish movement worked. It was fluid and dynamic and was able to have multiple fish swimming together at once. It was really well done.