Thanks for posting! When our dogs are getting their milk bones or greenies, there is no playing around, its crunch, crunch, crunch as soon as they can get the humans to stop demanding tricks and give them their treat!
I also agree with the other replies, there is NOTHING wrong with your voice; your narration goes well with the video (its a well known fact that everyone hates their own voice).
Finally, I don't know how you got your other dog to just sit there and not go for the treat, if it were another Yorkie that would have been even more amazing