The simplest way that the images foreshadow the reality in Bradbury's wonderful story is that they imply the situation before it is fully brought home. When Bradbury writes of the "dog, once huge and fleshy, but now gone to bone and covered with sores," he communicates just how badly things have gone for all the world before the picture is fully complete. After that, all the images of destruction imply that more will come. Though the house is standing at the start of the story, it stands almost alone, and so there's little surprise that things break down by story's end. Third, it shows that there is a kind of beauty in destruction.