@Simon The first one is the original image, and the others are that same image but with the hue shifted. You should be able to load the first image into a graphics program and shift the hue yourself to achieve the same results.
@matt I can only see the last image in this line and not very well. I would say the best analogy is that it kinda looks like a grey bird glimpsed in the canopy of a luscious tree.
