I really liked the progression (regression) and the pace of this, and certain lines were just so true that I paused in reading to read them again.
He has the memory, and he doesn't need the picture.
and also
It's not enough to make Harry laugh – not even enough to make him smile, not today – but Snape's there, wrapping his arms around Harry, holding him close enough to hear his heartbeat, and that's better than anything he could have said.
and this, maybe, is my favorite:
Equals now – they have both died and lived again.
It only just now strikes me, the Christ-like overtones of that line. I really liked this, and it was even better because I could see Jin's art in my mind. Really nice! (not insipid, nice! :D )