The Relationship between Geometry, Still Life and Head Image

In painting, geometry, still life and head are progressive.

The function of geometric figures is to let beginners know the basic structure of various things, including perspective, light and shadow, turning and so on.

Still life belongs to the advanced object of painting. After you have a basic understanding of geometry, you can sketch still life, because the structures of various objects in still life are composed of various geometric shapes.

The head portrait belongs to the advanced stage of painting. Only after we have a certain understanding of the shape, structure, perspective and light and shadow of the object can we sketch the head portrait.