What kind of photos are bad in photography?

This standard is hard to say, what kind of people have what kind of statement.

A person who is known as a photography artist said: all beautiful films are sugar water films, and they are all bad pictures.

For studio photographers, anything that uses less light is a bad photo, even if it looks good to you.

For ordinary people who shoot for fun, unless the photographer can't see anyone, that is a bad picture.

However, generally speaking, photography is the art of using light, and it should have proper light and shadow; Secondly, photography is a picture art, so the composition should be accurate; Third, photography is a technology, which must be technically passed. Exposure, depth of field, lens use, print display, etc. It is also good. Fourth, photography is not only seen on the computer, but also shows the entity, which is also a technology and art. All these have been done, and basically it can't be counted as a bad picture.