You know, you could always use shears..
Yeah, I think Notch released an animal loving update, you can now do things to get the stuff from the animals, without hurting them. Like milking cows doesn't do damage anymore, and two metal pieces shears sheep peacefully and maximum wool.
Or you can go with still beating it up, that yields..one block?
But sweet, clean animation, good voice quality, it just needs more content. Maybe make a follow up? Have the sheep take revenge? You got something good here, expand on it!