Reference of finished painting
Step one: first draw a horizontal line, then draw a semicircle.
Step 2: Draw another semicircle inside to make the watermelon rind.
Step 3: Inside the watermelon, draw some small black dots as watermelon seeds.
Step 4: On the back, draw a big oval shape and prepare to draw a whole watermelon.
Step 5: Next, use wavy lines to draw stripes on the watermelon.
Step 6: Draw a curved and winding watermelon vine on one end.
Step 7: Finally, just paint the painted watermelon with a beautiful color.