Sorry for all the opposing opinions, but I like the way the picture is composed. We're at a beach, where the sky, horizon and the sand are the only elements beside the dogs. The dogs has an interesting interaction, but the other elements has little going on because of little contrast. I find that if you increase the contrast in the sky, in the beach to get the reflection from the sky to really stand out, the picture will have plenty going on. The foam dots in the bottom left corner also helps to frame the scene.