To a certain extent, all works of art share five basic qualities: (1) they are created by humans, (2) they create consensus, (3) they have a subject, (4) they use a medium, and (5) they are structured.
Art is a subjective element and opens to different interpretations. Because of that, there's no consensus about an artwork. Each person and scholar will have their own ideas and theories about that kind of art, and especially, how that art affects his/her feelings.
