Are you lonely ?

Lovely vision you had for this, I must say, I liked where it is going.
In saying that, though, I almost feel as if I have seen something like this done before. The straight on framing bothers me a bit, I think it is a very boring angle.

I think this angle shot might have been better if, perhaps, one of the hearts stood out in some way. This would then give you a focus and you could, in turn, get away with the face-on angle. Not sure if you're well versed in the world of photoshop to do such a thing, but it would have been definitely worth trying for next time.

This shot would have been cool if it was from the side, showing the thinness of the paper hearts, as well as getting some of the background rain and window.

Overall, interesting shot, keep up the good work.