Like Cocoonap, Catharsis was made by Ukrainian team, but the authors worked on it in Seattle with the help of a Ukrainian volunteer organization. It took a lot of calculations to create the butterfly with the slightly curved back wings. The metal frame of wings was bent with bare hands to form the proper shape. Inside the wings was the particleboard. The use of these materials is closely described at the Event Design courses of Moscow Flower School
Particleboard was then puttied and painted manually in the Petrykivka style. After that the authors applied a layer of epoxy and repeated that cycle several times. They needed to make many layers of paint and epoxy so that the object would not be damaged from dust and sand.
The butterfly was illuminated during the evenings, and it seemed that the painting itself sparkled. To do that, they used two ultraviolet spotlights that stood in front of the butterfly. Moreover, different colors had different light intensities, which created a luxurious 3D effect.