If you all study the image, the main Sun is behind, shining into the image from behind the RH shoulder point!
If you study the wall, you will see the shadows progressing around it's curved shape.
You will also see that , if you study the shadows side of the two "humans".
Actually, there are more than the shadow of the goal post on the earth,---who ever said fantasy had to be "theoretically" correct?---come on guys! It's imagination/art/----next you will complain that the people are not standing on the ground of the stadium--and they are not! They are all standing on an "electric" floor on the roof of the stadium!

Is this image more "correct"?