Continuing with the background of the artwork ,paint  the canvas (except for the fish outlines) in this case I've used an Arteza Iridescent Black (A709).This will be a good primer for the canvas.

Once dry using a Gilding Polish (this case Ocean Teal) go over the surface to create the level of blue required use the end of the foam applicator to create bubbles if wanted.

After this I wanted to lift the blue so used mica powders Arteza (sky blue & aqua blue brushing at an angle to start to create light effects in the oceans water

Continue until you are happy with the look.

Next will be biginning to sculpt the fish.