It was not intentional. Though I have seen it many times. Elliott Erwitts image of the couple reflected in the side mirror of a car. I bet you have seen it too. If you don't know which image I am referring to, try searching for “elliott erwitt car couple” on your favourite search engine.
It did not occur to me as I was taking the picture. It dawned upon me as I sat down at the computer to take a look at the images I had taken a couple of days ago. It does look familiar, yet not the same. The point is, we don’t start with a blank canvas, or as Ansel Adams put it