Like I said earlier, the potion you've come up with is really cool. And also describing why Harry looks the way he does... better than a charm I think. Oh and I liked how you slipped into the description the characters reactions like "sounds morbid" and what not. So it wasn't a long winded speech or something, but an actual conversation.

Harry's clinginess is really cute and not overly done. I can imagine Harry wants Snape to stay so much that (if it would do any good) he'd cling to the man's leg. Or well he probably wouldn't he's a little too reserved for that...