Now you really spoiled my classification plans with your contribution! It's very very very well done. Apologies for having read it only now.
It's clear (halleluja). Clever and interesting dialogues which give depth to the characters. No useless campy lexicon. All juice and a final twist (but IMHO he will have to find a trick for the angel to come closer or take him by surprise, a bit more polishing, just a bit). Brava, I mean it!