The art in this is so beautiful ;_; All the different shades of blues and purples in Re'ala's design are amazing and she has pointy teeth (my weakness). I also love that she blushes blue. It's a great detail.
You chose the perfect music for this as well. It's rich, beautiful and haunting without feeling outright dark which is a great fit for a mermaid romance. Even though this was a super cute story, some darker possibilities are lurking underneath and presumably not every human who falls in love with a mermaid is as lucky as this main character.
I like to think that they founded a mermaid research institute together, or something like that.