Keep in mind that a work of art functions on the three levels of form, content, and context. Try to keep them reasonably distinct for the sake of clear discussion, but do take all three into account in your conclusion, discerning how they interact with one another. You do not have to follow the sequence given, but be sure to deal with all the topics pertinent to the work of art you discuss.
Every work of art involves the element of choices.
Certain possibilities have been employed, others rejected. Sometimes a useful exercise is to consider alternatives to see what these choices are and why they occur. Compare the work at hand with others of similar subjects to see alternative solutions, but remember that you are really writing about one work. Of course, artists can both allude to and create a human experience. There are so many aspects and elements in any work of art that no one can completely comprehend a given work.