Classic: How To Paint A Seascape
Step 8: Deeper Sea
As you work your way down, go behind the rocks and around the foamy areas, adding deeper colors (more blues and/or greens) as you get closer to the foreground, and in areas that need to be darkened. You can add in Burnt Sienna and a touch of Alizarin Crimson to dull down the color. Try to paint the way the water moves, and leave some white areas for waves or surf. For the areas where water turns into foam, soften the edges with a size 0 brush and clean water before the paint dries. Keep alternating between painting the ocean and softening edges until you finish.