Princess Merliah

Merliah and Kylie got their tattoos of the symbol of mermaid as surfer rival and also Kylie dye her hair purple

hello guys, how long i've been thinking... the crest of courage and merliah's tattoo have very similar aesthetics, the crest of courage (which has no wiki page, i think it should have) has a real meaning, but merliah's tattoos have no meaning they just appeared in the 2nd movie. but my doubt is the aesthetics of these two brands have any meaning in real life? Does this symbol exist in any culture?

I just randomly doodled this and figured I’d share it. I feel like Kylie’s face it a little off model, but whatever.