Oh wow!
The art style is amazing. On my first playthrough it kind of went over my head (Beautiful, but don't know what I'm playing)
Once I read the help and understood however, it was very poignant to see one of your own fish get eaten by a shark because you could not soothe them in time. That conveyed the theme dramatically
It was just a bit bizarre to see all my fish get eaten no matter what I did at the end, especially since the "score" thing made me think I had some kind of impact at the end.
Overall very good