I understand what you are saying and agree to an extent but would not go as far as you.
You say, "So, Mt. Williamson is NOT a realistic, natural image of the scene. It is a grand departure from what was real, and expression of how he felt standing there. It is NOT a picture of Mt. Williamson, it is a picture of the inside of Adam's head."
In what way was it a grand departure from reality? Was the mountain not there, was the light not towards the camera? Sure there has been very significant manipulation of contrast if I remember rightly (huge contraction) and perhaps to the left of the image a motorhome was parked....but I still dont get how it can be a radical departure?