First off, my dog is cuter than your dog. Had to say it! I snapped this while out for a walk with my dog Waylon. It's a great example of the rule of thirds, with the dominant subjects (the little lamb and Waylon) placed right at the points where the vertical lines would be drawn and both of their faces located in the middle section of the horizontal. The fence serves as a diagonal line and your eye follows it along before being stopped by the tree, which serves as a natural frame, and then bouncing back down to the dog. In this manner, one could bounce around the picture for quite some time. I offered a cropped version which frames the photo a little better. I suppose that follows the "rules" of a good photo a bit more but I enjoy seeing the donkey and the cow on the left also looking right at the camera. I also think the diagonal line of the fence is more powerful when you don't cut it off at the post, but that's just me.
