The dog is rotated. You can see the upper right hole through the body cavity is noticeably smaller on the right than the left. The pelvic wing under the leg is noticeable larger on the left than the right. This photo graphically shows the results of poor positioning. This photo shows the same hip joint on the same dog x rayed on the same day.
Some people ask how the difference can be so dramatic.
My feeling is that these are young dogs. If I took some of the falls that my eleven year old does I would have numerous broken bones. Its the same with our dogs. As they get older their ligaments are not as loose and they will probably not stretch as much. There may not be as much of a difference in older dogs.