These are good! And being that he is a Border, I'd bet he is obsessed with the ball and not just liking it.
It is tough to complain about the timing you've got here since they look like the peak of his jump but it is almost deceptive when you look at just one frame -- it looks like he might be jumping up with the ball already in his mouth. Did you get any where he is just about to catch it?
Also with #3, I think this is the strongest shot; I'd be tempted to clone out the houses and turn them into fields. Maybe turn the trees into blue sky and you'd have a very clean, graphic image.