In my opinion your picture is just not an picture, instead we can call it as Story Telling picture and in true essence this picture is telling the story and just we have to observe it.
Yes, in my opinion not only the footprints, one day all creations will Vanish because nothing is permanent and everything is perishable, so we have the current moment and in these moments we have to create the great stories.
And the main Aspect sharing by this picture is, great collaboration between water and sand, and also reflecting as water and sand is hugging each other.
Wishing you an great day and stay blessed. 🙂
Thank you for a great comment buddy! 8)
I agree with your thoughts.
Welcome and thank you so much. 🙂