The first is very close, but too close a crop for my liking (I sure would have wanted to see its beak), and it is not as sharp as a close-up of this kind would need to be. Also Photos 2 - 4 lack in sharpness.
The expression of the goose in 5 is funny. And I feel that a bit of unsharp mask could do the trick for that one to make it stand out (it deserves to stand out a bit more). The centred composition even works here, I think, though that black corner on the bottom right would need to be cloned out and replaced by the grass.