What is the best photography skill for a photo?

If you want to see a person's photography skills, it is absolutely not enough to watch a film, at least to watch a group of films. Making a good film is a combination of many factors, such as usual accumulation, diligent shooting and adaptability. It is not ruled out that sometimes people who are lucky and don't understand photography will accidentally shoot very shocking films.

Therefore, if I judge a person's photography level and give a group of ten films with the same theme, it must be the same theme, you can roughly see this person's shooting style, preferences, thinking about photography, composition and later level. The level of film selection and composition is also a problem for a university. How to choose and better describe the theme, narrative and logic I want to express.

As for why it must be the same theme, post-photography is nothing more than in-depth shooting in the field of interest, and how deep it is, how high it is.