Hey Alan, that's interesting to see the other shot from there. Your edit now is definitely closest in terms of coloring. You have the flaring corrected quite well, and keeping the edits separate from the sky is definitely the way to go.
One last thing I would suggest. If you look at our final edit, you will notice that the contrast in each of the 3 corners of the pyramid are greater then the whole middle of it now. I would do one final edit where you just raised the contrast of the whole pyramid minus the 3 corners to even out the contrast on the pyramid.