Hi Geoff,
Many thanks for your suggestions. Here are some tweaked images:
I have cloned out the line across the picture, you are right, there was an electric fence just behind the horse. I also got rid of the muddy path alongside the fence as it seemed a bit of a distraction and out of place once the fence was gone.
The piggy shot had no extra in the picture to the right, my fault as they raced off so quickly they almost got out of shot completely. Somehow in Photoshop I have managed to clone a bit of the background to extend it slightly to the right, and crop off more from the left. I agree with you that it is better when they are running into the picture, rather than out.
Thanks again for your comments, hopefully with practice I will be able to get it right first time