Work #789 "Mountain Village" A view from Kitayama Dam (Kasegawa Dam?) in Saga Prefecture, Japan. View from Kitayama Dam (Kasegawa Dam?) in Saga Prefecture, Japan. (The original drawing method, KOOSAIHO, uses oil crayon (oil pastel) in the eight colors of the rainbow (the seven colors of the rainbow and red-purple) plus white, plus nine colors of oil crayon (oil pastel). By rubbing one color on the belly of his finger, layering the colors in a unique order, smashing them with oil, rubbing, and scraping, he attempts to create depth in the layering of colors and bring them closer to the colors of the natural world. Each piece is one-of-a-kind. The impression changes depending on the location (light source) of the viewer due to the layering effect of the rainbow colors.