The red dragon, "made from a 1.2 x 1.2 meter sheet, took only 6 hours to fold. The white dragon is fashioned from a 2 x 2 meter sheet of paper. "As far as I know, it is the most complex origami in the world," says Kamiya in the video."
See more of his work on: folders.jp
Really amazing work!
Source: 1, 2, 3 & 4
Design Interior: Optical Illusions In Reality