Without the use of paint, I "paint" using only crushed, cut and powdered compatible glass. These components are layered on a base piece of glass and fired in a kiln. When cooled (after about 12 hours), I layer more glass and fire again. This layering and firing process is continued until I get the look that I want. This piece has been slumped to a gentle curve creating more depth. It is mounted on granite and surrounded by nature rocks.