Nice work Paul.
A couple of suggestions.
1. Use 24 fps minimum. That's what they use in film and it's a threshold for the brain interpreting smooth movement. If you don't have enough footage, you can slow it down a bit to fit. This works well or not depending on how much movement between frames.
2. Panning. It's better to smoothly ramp to a start or stop.
check 4:08 in this vid for a nice example of ramp to start -
http://vimeo.com/12055232
As others have said, music is a personal taste. Personally, I liked it
