Mo Yun's Painting Yangcheng with Heart belongs to a kind of watercolor ink painting, which is mainly divided into color ink painting and ink painting.
Watercolor paper is a kind of paper specially used for watercolor painting and ink painting, which generally has good water absorption. It is characterized by higher water absorption than ordinary paper, thicker pounds and stronger paper fibers, and it is not easy to break and pilling due to repeated smearing.
Gouache paper is a kind of paper specially used for gouache and ink painting. This kind of paper can absorb water and is very thick. There is a spot-like pit on the surface of gouache paper, and the concave surface of the spot is positive. Gouache paper has different color backgrounds. When gouache is wet, its color saturation is as high as that of oil painting, but when it is dry, it loses its luster and its saturation is greatly reduced because of the powder, which is the limit of its color purity.