This painting has been done for a tutorial I'm writing for psd magazine.
It's another mermaid, but I've done it on purpose since lots of people had asked me how to paint see creatures/hair/translucent skin/gills (I've tried to put all these things in one picture).
I hope you'll like it
The composition may look unusual and a little bit empty but since I'm planning to use it as a wallpaper (you can also download it to use it as a wallpaper if you like it), I've put some "empty space" (not really empty, but dark enough to avoid being too distracting) on the right part.
Enjoy

Photoshop CS3,
Wacom Intuos 3A4
20 hours approx

Reference