How to express a person at will in painting creation?

There is a good saying: "seemingly unintentional, in fact, pay attention to the brushwork everywhere." I think this sentence is very suitable for the painter's painting.

No matter which painter, as long as the painter is mature, he will not express a person in his own painting at will. In the painter's pen, "every frown is intentional, and every leaf is always concerned."

Da Vinci's Mona Lisa took 14 years from conception to completion. During this period, Leonardo da Vinci spent most of his time thinking about how to express the Mona Lisa, what shape, what posture, what movement, what expression, what background to set off and so on. It is said that Leonardo da Vinci changed the corners of Mona Lisa's eyes and corners of her mouth dozens of times to show her meaningful smile. It is precisely because of this rigorous and meticulous attitude that Leonardo da Vinci was able to create the pioneering work of classical oil painting in the Renaissance and the classic Mona Lisa.

Angel's Spring is a body art oil painting of a young girl standing all over. Prior to this, although there were many works of human body art in western oil paintings, they were not presented in a positive attitude. Such a comprehensive oil painting is likely to be vulgar if it is slightly neglected or poorly grasped in creation. For this reason, Ang began to create such an oil painting from 1830. During this period, he made changes and changed the painting, and drew eight paintings just by sketching, which was really painstaking. It was not until 1856 that the painting was officially completed, which was actually 26 years before and after. At that time, 76-year-old Angel looked at this work that had been "bred" for 26 years and wept with joy. Fountain is listed as a model of human body art teaching in many countries.

Abstract figure painting by Picasso, the master of abstract cubism painting, is "casual" to many people, but it is not. The action expression of each character depicted by the painter is meaningful. For example, the six women in The Woman with Vernon have different shapes and expressions, which seem bizarre and exaggerated, but everyone shows different mentality and reflects the living conditions of some people in real life in an abstract way.