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The right eye of the right face appears to be missing in a section that may have had a landslide. There is still a similarity between the left side corners.

 

          

 

This is an intermediate shot of the two right eyes. Note how perfectly the Kingface right eye fits into the hole.

 

 

 

 

 

 

There may also be another right eye that services all 3 faces. The Kingface below has the normal left eye but also a hollow under the usual right eye. This fits in more with the face shape looking rightwards and may indicate on right eye merging into another as the sun moves. There is a matching hollow on the right face and then the left face.