I have found that most people glance at a work of art, they enjoy it or not, and they don't really notice any details, subtleties, hidden metaphors, or messages. While discussing a film with a friend, for example, I have often mentioned a hilarious or crucial scene, but they had no memory at all of that scene.
These reviews are of works that grabbed my attention one way or another; they reflect my possibly biased personal viewpoint, and therefore could say more about me than about the artist's intentions.
There is always much more to see in a painting than its surface, when so much that is real is hidden in the depths. Yes, it has purpose, attitude or perhaps a story, but few are the divers who go to seek the treasures that are hidden below.