I've put in the back ground now, combination of thalo blue and cerulean blue with a touch of titanium white. The idea is to create depth and show streams of light filtering thru the water.
Read MoreJUST ADD WATER

I've put in the back ground now, combination of thalo blue and cerulean blue with a touch of titanium white. The idea is to create depth and show streams of light filtering thru the water.
Read MoreThe next step in this painting, is filling in the sea floor behind the corals. I've used pure yellow ocher as the dark, and a mixture with lots of titanium white for the lighter areas. Then I used a dry brush to drag some more of the dark over the lighter areas... to give it a bit of a textural look. Later on, blue glazes over the yellow ocher will give it just the right color, and a sense of depth.
This is how I often begin a painting... with a drawing on the canvas.
I start by laying in some of the darks, this is all done with burnt umber --- loaded brush for the darks --- the lighter passages are scrubbed in with the brush after I wipe most of the paint off with a paper towel.
Here's a closer shot of the drawing, that shows the coral that goes across the bottom of the painting,. There's not really a lot of detail... just trying to establish a sense of scale and a pattern foe the lights and darks. This is usually all I do in the first session, it takes about an hour.