1. First we need to draw the outline of the hull, which is curved on both sides, slightly concave in the middle, and slightly curved at the bottom.
2. Then draw the guardrail on it, draw a long mast, draw a canvas on the left, add some patterns, and draw another canvas on the right.
3. Paint the hull with yellow and red, paint the guardrail with dark gray, paint the mast with tan, and paint the canvas on both sides with brown and red. The simple sailboat is ready!