Three formal factors of photographic composition-subject, companion and environment. What are their main functions? How to arrange the position of the theme in the picture?

Theme: reflect the theme; Being in the center of the picture structure, pay attention to the structure, not the composition, so as to catch the viewer's eye.

Accompanying body: complete ideological expression with the theme of * * *; Increase the information of the picture to make it more natural, vivid and infectious, but be careful not to usurp the role of the master.

Environment: Highlight the expressive force and set off the subject. Generally speaking, the choice of environment determines the success or failure of the picture.

The theme is the subject, there is nothing wrong with arranging it there, as long as it can attract the attention of the viewer. Generally speaking, it is better to focus on the composition principle, and it is better to divide the composition into three parts in two thirds.