First of all: Awesome job!
Now that I got that out of my system, let's get a little more specific...
I loved every bit of the video, including the story. With the recent abundance of crossover videos with tight storytelling following pretty much the same pattern of unrequited/tragic love, what you did felt like a breath of fresh air. A storytelling video built solely on emotions, a mystery but unpretentious amv. I understand it's not everyone's cup of tea but the vague storytelling was precisely what made the atmosphere so strong. I actually even felt that the photo frame at the end was telling too much, and since it is a very concrete and in crossover videos overused object it felt kind of disrupting to the whole mystery atmosphere.
x2. I loved the mystery aspect of it at the start because I didn't know what the girl was. Just a random angel? Someone he knew? Or maybe it was all his imagination? Could have been any of those. It was only after I saw the photo frame, that I realized that the girl was dead so it shortened all those options to just one. Which then left me wondering for a while what their relationship was cause originally I thought she was an angel of death who came to take his life away because he had done something bad and was waiting for his time to end. (hence the clocks) xD
Still it had a fantastic atmosphere.
The colouring was gorgeous, the lighting was a bit strong at a few parts but it looked mostly good to me. Very nice! I loved it! ^^