How to choose the background and foreground in photography?

The differences between the background or foreground and the theme in color, shape, line, texture, light and shade will cause contrast, thus highlighting the theme.

(1) Simple and soft background.

Simple background will not rob the position of the theme, which is conducive to highlighting the theme. But too simple and monotonous background will make the photo too dull.

(2) Avoid messy background.

The messy background will make the photos look very confusing, and what's worse, it will make people confused about the theme.

(3) Avoid too many people and things in the foreground.

If there are too many people and things in the foreground, it will be difficult to highlight the main body and seriously damage the overall effect of the photo.