The 2 cliff sides painted with the basic ground colors and heavily washed with oil washes of various tones and densities to blend everything together as much as possible.Once dry the flora will be added.The red/brown color will be covered largely by flora and grass but still will be exposed in few areas to represent the soft muddy soil of that area of the world (tropic circle).This re/brown with intense green flora mix combined with a soft green/brown color of the muddy water will provide a very colorful sight indeed.