The cold and warm feeling of color is formed by association in people's long-term life practice. Red, orange and yellow often remind people of the rising sun and burning flames in the east, so they have a warm feeling, so they are called "warm colors"; Blue often reminds people of the blue sky in the sky and the snow and ice in the shadow, so it has a cold feeling, so it is called "cool color"; Colors such as green and purple give people the impression that they are neither hot nor cold, so they are called "neutral colors". Cold and warm colors are relative. For the same color, more warm colors are warmer, and vice versa.

When we have a certain understanding of color, the next step is the specific painting. Be sure to observe the object before painting, and then analyze and compare it to get the overall relationship. Observation should focus on the big relationship, and then analyze the specific object. In other words, it is what is usually said: proceed from the whole and go deep into the parts. The biggest problem for beginners is to observe in isolation, show locally, be keen on painting part by part, and finally piece together a painting. In this way, the overall relationship can be imagined, that is, squandering. The white ash in the sketch, the warmth and coldness of the color and the spatial level are all the first considerations before painting. As far as the space of still life sketch is concerned, the table is an inward extending horizontal plane, and objects are placed in this space with a vertical wall as the background, which plays the role of foil. If the spatial positions of the three are drawn in place, the picture will be layered. Among them, there are sketch factors and the relationship between cold and warm colors. Dark colors set off bright colors or bright colors set off deep objects, warm colors set off or cold colors set off, light source colors are warm or cold, dark colors are cold or warm, and what color the overall color of the picture belongs to must be very clear in your mind. The essence of observation is to analyze the object and find out the overall relationship of the picture. The primary and secondary, strong and weak, and deep cold of the picture are all produced by contrast. With the overall consciousness in the chest, painting will not stick to local description. Generally speaking, the colors of nearby scenes are warm and fresh, with strong contrast, while the colors of distant objects are cold and gray, with weak contrast; The main object should be slightly fresh and the background should be painted light gray. Knowing the truth, it is not difficult to learn to draw. But some people say that painting is based on feelings, which makes no sense. In fact, painting by feeling is for a person who has mastered certain painting knowledge and sketching ability, but for a beginner, painting must first have "law", and "law" is the method and law. Only when you know the rules and methods of painting can you spend your time with confidence. If you don't know the overall relationship, sketch level, body structure, perspective knowledge and color law, you won't know where to start, and you won't be able to achieve the training effect and improve the painting level.