I am looking for expert commentary on this photo. I am hypothesizing that the shadow on the far-left figure is impossible. My reasons are: 1. The sun is 93 million miles away and must cast shadows of parallel angles. 2. The appearance of shadows are a physical phenomena and not dependent on the observer. 3. The shadow on the figure should be consistent with the angle of the other shadows due to the distance of the light source. It has been noted that there is a difference in the surface on which they are sitting. In other words, does the difference in the orientation of their planes correspond with the change in the angle of their shadow?