Evolution was made by Troy Pillow in 2008. Self-taught artist Troy Pillow creates kinetic sculpture and chooses steel as his medium because of its “permanency, reliability, organic nature, and sustainability.” Look closely and you’ll see some pieces move in the wind. He says, “Relying on wind and light as energy sources, art [takes] on a direct relationship with the site and its surroundings.” According to a student from nearby Bear Creek Elementary, “It brings joy to our neighborhood.”