This picture, entitled Giraffe, was at first a mistake. When returning from Africa, Turner realized that the shot was well overexposed. In an attempt to save the picture he added his own colors. At first he added just one which didn't look nice. Then he decided to add magenta for the sky and purple for the ground. He was pleased with the outcome and this became one of his most famous shots.
Another one of Turner's classics called Doorway to Nowhere.