More fairytale reimagining

I've let this one lay because I was slightly frustrated, but I just looked at the calendar and realised there's not many left of this challenge.

It was a bit too clean and whatnot.. I've just messed around to see what kind of ideas I can get. I want the mermaids too look a bit more "otherworldly" to set off against the diver.

And I learned something new! Greyish "pure" blue looks red in this colours. :) 

C&C as always much appreciated.