Man, Machine and Nature
If one element was missing, Man or Machine or Nature, this photograph would not be as interesting. Or, if the Man was standing next to the Machine in Nature and there was no "motion", the photograph would be less interesting...
If I had used a more descriptive title: "Man Moving Through Nature Using a Machine"; then the title would not have had as much impact. Or, if I had included an existing sign on a tree to the left, the sign would distract and take away from the photograph.
A good photograph is made up of the "perfect" number of elements; not too many, not too little. But, this "perfect" combination changes with subject, mood, composition and most significantly with "perception"... as in everything else.