How to distinguish the quality of photographic works (especially commercial portrait photography) from the level of photographers?

Measure good or bad: first, photography techniques, such as exposure control, accurate light angle, color matching, and rationality of composition; The second is communication and coordination with the guests, such as the movements and smiles of the guests (excellent commercial photographers communicate well with the guests, so in their photographs, the movements of the guests will be natural and smooth, and the smiles will be sweet, otherwise the movements will be stiff and the smiles will be missing); Whether the third work can impress people or not, a good work can always impress the audience (you can feel it yourself).

Satisfied, please adopt.