I suppose that the fence goes across a thirds intersection, but the rest of this photo, while pleasing in color and content is in violation of the Rule of Thirds. The barn is smack in the middle of the picture, the horizon line is also lined up in the middle. I guess you could argue that the house and white faced barn are at the thirds line on the right, but they are definately not at an intersection. Whether the image works better this way or not is debatable, but I don't think it meets the challenge criteria.
To me the main subject of this image is the farm buildings, which happen to be closer to the center of the image than the standard rule of third locations. The colors are also a bit over satureated for my taste.