Paulownia wood panel, mizuhoshi, sumi ink, heaping up, with a temporary frame (simple frame). This work was painted directly on paulownia wood panel. The central bamboo is slightly raised. Since this work was painted directly on paulownia wood panel, it has a matte finish characteristic of Japanese-style painting. A simple frame is attached. The frame size is 33.1 cm (H) x 25.5 cm (W) x 1.5 cm (D), and the total weight including the work is 420 g. "Nihonga" is based on a style of painting that has continued for more than 1,000 years, and uses traditional materials that have been cultivated over long periods of history. It is a technique of painting on Japanese paper, silk, wood, etc., using natural paints such as sumi, iwa-enogu, gofun, etc., and glue as an adhesive. Gold and other metal materials (gold leaf, etc.) are also used. Iwa-enogu, made from ores, is a beautiful, sand-like powder. Mizuhigure, made from clay, is a fine, stretchy paint with fine particles. Artificial versions of iwa-enogu and mizuhoshi egur are also made, and are available in a wide variety of colors. Goko, made from shells, is a white pigment with fine particles.