In this video I am working on a 30"x40" canvas. First I prep the canvas with Hard Molding Paste, let that dry completely, and then layer transparent acrylic colors, some diluted with water. Much of this rich, textured background will get covered in the process of developing the painting, but it provides a counterpoint to the flat colors and different kinds of textures I will layer over it.
The colors I am using include Sap Green Hue, Turquoise Pthalo, Sepia (high flow), Pthalo Blue, and Quinacridone Gold. This is not a formula; try various combinations of transparent/translucent colors.