Completed in April 1975, the painting of the temple on Yavin was another very accurately realized onscreen. According to Harrison Ellenshaw, who created that particular matte painting, George specifically requested that it be re-done to look more like Ralph’s original concept.
Ralph also had very distinct ideas as to why the Rebels chose to use the ancient temples for their ship hangar. “The material in the huge stone shapes is so dense that it stops the flow of gravity.” Thereby making it easier for them to move their heavy equipment around.