THIS was fun! The colors look great to me, the outfit is sleak and stealthy yet the colors are vibrant and lively! I hope you enjoy this design buddy!
as you can tell.... this isnt your typical mermaid. This is a TF-W mermaid. things are slightly different from what one is used to in mermaid pictures.
I like to infuse logic into my creatures when I make them so here are some details about the TF-W mermaid
The skin is an almost sickly green color because Merpeople live so far down in the ocean where the suns rays can't reach them. Therefore they do not tan and dont take on human skin tones.
The glow is the same kind of light that many other creatures that live in the depths create.
This specific mermaid is a scout. She is dressed in all black and is sent to the hiher levels of the ocean to scout for enemy merfolk, unknown creatures and most of all humans. The black is to help blend into the dark, murky waters and help them remain out of sight.
They do in fact have gills. How else would they breathe underwater? They also have a reserve set of lungs that they can use if they go above water. WHen they go underwater a flap in their wind pipe closes the opening to the lungs, preventing them from being filled with water.