What changes can make the picture feel spatial?

Changes from the near to the far can give the picture a sense of space.

The sense of space refers to the aesthetic feeling similar to the real space produced by artistic images through certain methods. Including the space of direct expression of the work and the imagination space outside the specific image of the work. As the materialized form of artists' aesthetic consciousness, works of art always exist in a certain space. The finiteness of artistic image and the contradiction between the object of expression and the infinity of the real world make the sense of space have aesthetic significance in artistic creation and appreciation.

Hegel thinks that spatial form is the most abstract in essence. Artists concentrate this abstract form in concrete works, and through association and imagination, people feel the space outside the image. The sense of space has different characteristics in different art categories: in sculpture art, the image exists in three-dimensional space, and the modeling subject generally has no background (but there are many places to put it). The artist reminds people of the environmental space of his activities and life through the pursuit of specific instant modeling and spatial depth. In painting and photography, images exist in a two-dimensional plane, but through composition, perspective, line direction, light and shadow, color processing, people feel the integrity and three-dimensional space.