I can just imagine the inaudible thud your heart made as it fell. Great photo, though, as oolalajp said, as it really captures the essence of that transition. Good luck with the ride ahead - mine's still coming.
Or: "give me 1 good reason why you want to take this picture" Love to see this change in expression: they discovered an 'inner' world and you stay out (the rest of your life; mostly) very good indeed!