I think maybe it’s all about from the perspective that the apple sees. to the human eye we see a room first, and then see the details, the first thing i saw when looking at this was the apple. it shows the perspective and the things we find more ‘important’ pop out to us first. So although it may seem strange the apple is the focal point.
Answer:
Just say nothing and stare at them with a blank face.
No there are countless sculptures with chipped away pieces and marks on them that are not from the elements but from people touching them also you should always respect someone’s art work and not touch it unless you have permission.