The Moons sculptures are created from wood, acrylic spheres, paint and resin. Soluna and 12 Moons utilize LED lights for night viewing. Soluna and 12 Moons are 36 inches, Bridge of Moons is 46. Please note color changes in Bridge of Moons since the video above was created, the base is now mostly black, as shown below.

12 Moons at night