This one is wonderful !!
I don't know if this is a fairy or a mermaid, but it reminds me of a fairy called Selkie, some say that she lives in the water deceiving fishermen. Anyway, I like this drawing and agree with Davidrdlo, the light reflecting on the water looks stunningly beautiful.
It is indeed a selkie. I wanted to show a plausible interaction between selkies and humans that didn't involve kidnapping or forced marriage.
i liked the light reflecting on water
I am both awed and frightened by your mermaid.