What are the manifestations of photographic works?

First, the contrast between reality and reality is to use "virtual body" to set off "entity", which is often manifested as blurred depth of field, virtual shadow and slow focus. Second, contrast photography is an art of using light. The contrast between light and dark will make the picture stronger. Third, the size contrast is to set off "big" through "small". For example, in landscape photography, people or other objects that can be used as size reference are used to contrast and highlight the magnificence of the landscape, and the picture effect is more visually impactful.