If we like an artwork sometimes it is difficult to say why we like it.
Art is a rich world of traditions, images and technical concerns about materials.
Unless you approach it with a simple plan its sheer complexity can be intimidating. It divides the process into three steps. During each step the viewer answers a series of similar questions about the piece of art they are looking at. The good news is that as human beings we are excellent at looking, often we just don't take the time to look closely. I. Step one is a basic information step.