What's the difference between Impressionism and Chinese freehand painting?

First of all, the material is different. Impressionism is oil painting. Chinese writing is ink.

Impressionism focuses on the true expression of light and color in nature, and advocates outdoor sketching, a quick record of one's first impression of a scene. For example, Monet's Sunrise . Impression", is one of the masterpieces of Impressionism, with rapid painting techniques, recorded the sunrise that moment of light and color. Impressionism focuses more on color.

Chinese writing is concerned with the intention of the pen first. The pursuit of resemblance, "shape between resemblance and non-resemblance", focusing on the chiaroscuro, God. Chinese writing is more focused on "God".