Then, taking my 6B and 9B pencils, I go ahead and sketch in dark strokes of shadows for the base of the wave, and leaving light shadows for the top. The reason the base is so dark, is because of the deepness of the water. This area has to be fairly dark in order to seem to have depth. Once again, take the blending material, and blend in the shadows. After a few repeats, you should have dark tones. Take whiteout, or white acrylics, and paint in very faint lines to detail a bit of mist on the wave. You must use a very thin paintbrush or thin material for this part.