Simple drawing of cotton

Step one:

First draw a small rectangle, but don't seal it.

Step 2:

Then draw two curves on both sides, and add two curves in the middle.

The third step:

Then connect them with arcs.

Step 4:

Above, use arcs to draw the feeling of cotton.

Step 5:

Then you can draw arcs on both the outside and inside to increase its layering.

Step 6:

Finally, paint it with a nice color, and the cotton is painted like this.