Editor's Note: The same mountain backdrops appear in various photos, irrespective of the foregrounds. Moreover, backdrops are moved around as is customary in theatrical stage work. And the LM cannot be in two different places at the same location. Finally, the flags are pointing in different directions in the two images. See also: Did we land on the Moon?
Winston Wu has pointed out in AS15-88-11863 that there is an apparent 'ledge' between the rear foreground and the near foreground area where all the activity has taken place. It looks rather like a white 'carpet' layer that was placed over the 'lunar dust'. The slightly lower near foreground carries all the tracks and footprints.