This is the completed centerpiece of my Deep Rising 11 project. I used green-blotch parrotfish (Scarus quoyi) as my point of reference for the dragon's color scheme, and for the fish in the background.

I used watercolor with salt, ink, Prismacolor pencils, and some gel pens to bring out a few small details.

Next, I will construct a framework/setting kind of thing that will include some additional color/pattern arrangements using the current parrotfish color scheme. I will add rocks, shells, and shiny things, as well.