Both pictures were altered, the first picture they basically just clicked on the rear end and dragged it up, and IF a horse had a back like that (which has never happened before) the legs would be much further back, if the horse was even walking. The second one, you can clearly see that the background has photoshop stretch-marks, and it is also an inaccurate portrayal of how overweight horses look-the hind leg is bony but the belly is distended.