Hey Pat you have come upon a tender moment and captured it well. The black and white rendition enhances the overall look of this photo in my opinion. I like it. I agree that removing the sheeps head on the left woud make it even better but do not agree that a tighter crop would do it. I might take off just a little bit on the left but would then clone the rest of the head out of the image.
I know what others mean about a tighter crop, but I don't see how it would be possible to crop out the near sheep without destroying some of the compositional elements on the left side of the photo. The only solution would be to attempt to clone the near sheep away....but that would be a ton of work and likely lead to unsatisfactory results.
Nice shot. I agree with David, I don't think it would look good to crop it such that the sheeps neck was coming out of the edge of the frame. I also think contrast is just fine as-is, although maybe adding some vignetting might work.