Brazilian photographer Vitor Schietti uses fireworks and long-exposure photography to create his “Impermanent Sculptures.” The effect was achieved by manual waving of fireworks, some post processing, and then by combining up to 12 shots into a single image.

“The series is the result of several years of research on long exposure photography, and the usage of ND filters was vital to find a perfect balance between the fading twilight and the brightness of the fireworks,” Schietti told Colossal. “Only a few attempts were allowed per day, since the time frame during which this balance is possible is very narrow (30 to 50 minutes).”