In order for someone to better understand a photograph I think they need to first understand how long the photographer has been taking pictures. I also think that someone who does not understand all the key concepts of photography, or at least have minimal knowledge of it wouldn't understand something more complex than a normal photo. I think once that someone has learned more about photography can notice things like parallel lines and complementary colors. In order for someone to understand a photo they have to look at it truly. To better define and discuss an image you have to look at in different ways, like not just what the photo actually is.