What does structure mean in SLR? Ask the master for advice!

Composition is a term for taking pictures or painting and photography.

Terminology of composition and plastic arts.

Refers to the structural configuration method of artistic images in works. It is an important means for plastic arts to express the ideological content of works and gain artistic appeal.

Simply put, it is to put the scene or thing you want to shoot in the picture, which looks more "beautiful" (visually comfortable).