NIMBUS II: Artist Berndnaut Smilde: The clouds are generated using a smoke machine, but Smilde must carefully monitor a room's humidity and atmosphere in order to get the smoke to hang so elegantly, and with such life-like form. Backlighting is used to bring out shadows from within the cloud, to give it that look of a looming and ominous rain cloud. #Berndnaut_Smilde #Clouds