Step 9
I spent several hours developing layers onto the sand in various warm colors (cadmium red medium, burn umber, raw umber, cadmium yellow medium, and brilliant orange tinted with titanium white and muted with mars black and burnt umber. Occassionally I added dioxazine purple and pthalo blue and green to these colors to pick up on some of the colors in the water refelcted onto the sand and foam. Rather than purchase huge quantities of pre-mixed acrylics, I stay with Liquitex brands in the primary colors and prefer to mix my own variants to match the color schemes I want.
The use of dry brush on the warm sand colors with tints of the foam added a nice coarse effect, and then I washed in the graduations of lighter foam onto the sand with very wide flat brushes. You have to work very fast in acrylic to get this. For example, the darker edge of the sand had the dark added last while the sand was still wet, using several flat brushes to do the sand, and then using a small flat and round combination along the edge until blened got the effect I wanted. I usually use a clean dry brush to blend the two wet colors together.
The deck on the restaurant was especially challenging to achieve with all of the geometric lines on it criss crossing all over the place! I worked from the back to the front.