I love that song!! Who is it?
And, the video is great, but I think you're right - it would be even more powerful if you inserted a few slides throughout with some words of inspirations.
Like...
Each year, XXXXXXX# of dogs and cats are euthanized in shelters across the country (you can get this info. from the HSUS website - I'm just too lazy to do it myself)
Most of them die simply because they weren't wanted.
Pet Adoption saves lives.
But we can't do it by ourselves.
You can make a difference.
Choose to adopt a rescued pet.
Something like that. You can tailor it to a single rescue organization or keep it general. Anyway, you've got a great start and I love your creativity!!
Jeanne