Sketch a nose
The nose is the most prominent part of the face and the key object of shaping.

Boyi Beijing Studio is introduced, which consists of nasal root, bridge of nose, nose head, alar, nostril and nasolabial groove.

Nose root:?

The nasal root is close to the lacrimal caruncle and connected with the downward curve of the frontal bone, which is the narrowest place and the most urgent turning point. The turning point and contrast between it and the eyes are obvious, but we can't overemphasize it. We should only explain it near the eye structure to avoid weakening the performance of the eye.

Bridge of nose:

The bridge of the nose should pay attention to the morphological and structural changes in the middle and both sides and the connection with its adjacent parts. The side of the nose protrudes slightly, just in the area where the bridge of the nose extends outward. Therefore, the alar should show the shape change of the side and the depth change of the joint between the alar side and the dark side after mastering the maximum light-dark dividing line.

Nasal floor:?

There is an obvious light-dark dividing line and reflection at the bottom of the nose, which is the difficulty of performance. Pay attention to its rich light and dark and virtual and real changes. Beginners should strengthen their understanding of the structure of the nose, pay attention to the relationship between various parts, such as insertion, front and back, virtual and real, summarize the various shapes of the nose, and understand the relationship between the nasal bone block, the nose head block and the alar block.

Operational definition of sketch: the drawing method of expressing objects with a relatively single color with the help of lightness change. Sketch painting tools are varied and not limited to one tool. Sketch is a relatively fast sketch form. Sketch level is one of the important indicators reflecting the basic level of painting and basic modeling ability of painters.