How to draw waves with simple strokes

First, draw a sailboat on the waves. Draw a semicircle, then draw a sharp corner on the semicircle, and a sailboat will be drawn. Then draw a bigger sailboat at a certain distance, draw waves, draw the sunrise on the sea, draw some seagulls in the sky, and finally paint the waves blue, the sun yellow and the boat red, and the wave stick figure will come out.