Just to add my 2p worth:

The music sets the mood for the video brilliantly.

As for the sound of the rain, I suggest, rather than using the sound from the video iteself, as I can hear the wind blustering, and a very small jump when the scene changes, maybe use some stock sound of rain over the top instead.

Finally, on the less smooth parts of the shots, use some of the still photographs of the same scene (ask various people if you could use their photos), possibly using a slow zoom on them to make them appear less static.