TYPE-1
1-Start with a simple form.
2-Press hard to darken one side.
3-Press lighter to shade the center.
4-Press hard again to darken the oppposite side.
5-Darken the base and top area.
TYPE-2
1-Start with a simple form.
2-Press lightly and evenly to fill entire form.
3-Go back and press hard to darken one side.
4-Darken the other side.
5-Darken the base and top area.