What are the types of sketches?

The theme is divided into head portrait, still life, scenery and human body.

Sketch uses a wide range of tools, including pencils,

Charcoal pen, pen, writing brush, colored chalk, stone pen, metal pen, reed pen, etc.

The plane of painting is mostly paper, including parchment, cloth, wood and gold.

Metal, ceramics and even walls, glass, sand and so on. The theme of sketch is portrait,

Still life, scenery, people and the combination of non-figurative points, lines and surfaces.

Although the concept of sketch originated from the western painting system, from the perspective of monochrome painting,

To a certain extent, Chinese painting is also a form of sketch.