What make a good photo

In my opinion, a good photo should contain certain meaning. It maybe a reflection of a problem in society, it might express a certain feeling, or it maybe capture of a memorable scenes. A viewer of the photo should gain some information when they look at the photos, a good photo must be taken with the photographer's love and care, it should show that the photographer is serious on creating beauty but not fooling around and having fun, i think that is the most important. Other than that, a good photo should included some of the elements of photography. Depth and contrast are important, they create a real-like three-dimensional world behind the pictures. Preposition is also a main point, a good preposition using the rule of third can produce a good photo. On conclusion, I think a good photo should be interesting and meaningful, it should be well taken by the photographer, and it should contain the elements of photography.