this painting is a wet in wet job with the focus on the two nicely shaped white pieces one in the and one in the water. Keep them and the painting will take care of itself. Wet the paper with a natural sponge before painting and after you have sketched in the major shapes, then take the excess water off with the sponge. Try not to rub to hard into the paper or it will distress the paper, paint with a large brush and since the paper is damp use darker values since they will dry lighter than you see when it is wet. Have fun and keep it really loose and fun.