this uses the principle of white space as the photo creates a negative space around the window with it as the main object. The use of empty space around the window allows it to be the main focus of the photo
Trying to fill in someone else's shoes is futile. The person will at best be a shadow of the one who shoes they are trying to fill. It is best to have new shoes (their own) rather than live in the shadow of another
Yes excellent focus, required detail, centred composition. it's mysterious - not immediately obvious that it is a guitar. it's shiny - high contrast between dark and light. it glows at the end - draws viewers eye to top and around photo.