I'm not sure if I buy that counterfactual. Taken to its logical conclusion, you can say that about any piece of art, or anyone you meet, or any event in your life. I don't believe that these are such interchangeable items. Taking your example of an alternate photo of a 5yo waving to her dad, or a mother hugging her son, they express different things compared with the photo in question, with the original photo giving me a sense of the joy of returning to a youthful life full of promise, while the 5yo waving photo would be of the relief of a father knowing that he will be able to raise his daughter, and the last would be of a dutiful son returning.