The milestone of China's landscape painting originated very early. Dong (Yuan) and Ju (Ran) are ancestors of hundreds of generations, and they have changed again in (Huang, Wang, Wu and Ni), but they still inherited their mantle. Although people complained about the evolution from Dong Qichang to the "Four Heavenly Kings" in the early Qing Dynasty, it still made sense. It was only with the arrival of schools such as Loudong, Yushan, Songjiang and Huating that China's landscape painting really became a spent force. However, his landscape paintings are very special. Modern researchers like to say that Dong Yuan's paintings have "light expression", and Mr. Pan Tianshou also said that Dong Yuan's paintings are "like sketches of western landscape paintings"

The diversity of sketch expression forms is the embodiment of the spirit of the times

The diversity of sketch is formed under the concept of diversification in modern society. In the past, the classical art styles of a period or a region were basically similar, and the more mature the art, the more stylized it became. For example, the traditional arts of ancient Egypt, ancient India and China all have a complete set of technical procedures and fixed styles. The rise and fall of its style is mostly determined by the change of regime and the rise and fall of dynasties.

From the perspective of art history, classical art was formed under the feudal system, and artists served the emperor or God. At that time, artists had to have religious feelings. Generations forged a style to express an emotion, so pious that they didn't think they were doing art. In the capitalist era, since the Renaissance, the spirit of humanism has been widely spread. People's continuous understanding of the objective world and themselves, as the main body of life, have been given due respect. Artists have discovered the longing for freedom hidden in life and the joy of discovery and creation. Plastic arts are no longer just religious illustrations and court decorations, but require the juxtaposition of art and science. Plastic arts are as lofty as music and literature. In modern society, artists should express themselves through art, and the spirit of art lies in creation. When the slogan "Everyone is an artist" comes into our life, the richness of contemporary western art forms makes people who have long been suppressed by feudal consciousness unable to fully understand it.

The diversity of sketch is formed in the process of people's continuous discovery and creation. It can be said that the diversity of sketch is made possible by respecting individual creation.