Preparation materials: sketch paper, brush.

First of all, the nose

1, first observe the characteristics of the nose, draw the shape of the nose with a pencil, and represent the nose with the shape of a geometric figure.

2. Refine the details of the nasal bottom sketch, outline the perspective relationship of nostrils, and spread light and dark tones.

3. Wipe the light and dark tones according to the structure of the nose, pay attention to the reflection and permeability of the bottom of the nose, and control the black, white and gray relationship of the picture.

4, deeply shape the overall picture, shape the details of the nose, and leave the highlights of the nose.

Second, the mouth

1. Starting from the 2B pencil, draw the projection and light-dark structure lines between the mouth and the upper and lower lips of people, as well as between the mouth.

2. Spread out the big color of the mouth picture, start arranging the lines according to the structural trend of the mouth, and draw the overall light and dark tones of the mouth.

3. Wipe the picture with a paper towel, control the relationship between black, white and gray of lips, and depict the modeling details of lips and people.

4. Finally, shape and adjust the details of the mouth, the texture on the lips should be delicate enough, and the projection and reflection relationship between the upper and lower lips.

Introduction to the development of painting:

First, the main points of painting:

1, learn from decorative painting. Picture segmentation, point, line and plane composition, visual balance, rhythm of picture element arrangement. Color collocation, color distribution and so on, color psychology. Starting from learning the most basic laws of visual aesthetics, it will be of great help to art study at any stage in the future.

2. Then sketch painting began to learn. Learn from structure sketch, and express the structural relationship and spatial perspective relationship with lines. From simple geometry to complex geometry, to plaster head and still life sketch. Learn how to brush and draw smooth lines. The purpose is to learn to express the spatial structure of objects.

3. Learn the rules of color composition and usage through still life and landscape sketch, which echoes the color collocation and distribution in plane composition. How to use color contrast to shape the volume of light and shadow, the performance of different materials under different light sources, and color psychology.

Second, the painting matters needing attention:

1, for beginners, on the one hand, it is to strengthen the understanding of the overall consciousness, on the other hand, it is to pay attention to the overall relationship in observation and performance and overcome the bad habit of focusing on one point. For example, when drawing an avatar, you must observe the object as a whole. For example, when drawing eyes, we should consider the relationship with ears or nose, and we should not draw eyes in isolation and fall into local areas.

2. Grasping the shape and expressing the sense of volume and space is another important factor in basic sketch. We should not only make clear the shape, proportion and size of the object, but also overcome the plane description and have the most basic understanding and mastery of modeling.