"Composition" comes from "composite," which has more to do with a variety of elements coming together as a whole. In a composition parts are related precisely because of the whole. One of main factors to be taken into account when we compose is realtionship between elements of a photograph. The question I'd like to raise will sound something like this "What is it about the relationship of the objects in a picture that makes it interesting to see?" For example at f2.8, the compositional relationship of the main subject to its surroundings will be much different than at f22. It still seems to me that this photo here was created with very good compositional qualities and a sure excellent piece of work.