Trudging along with this...
As you all know too well, I analyze adn over analyze nearly to the poitn of debilitation.
Currently I am focused (again) on the granularity of the speckling, particulary on the lower dome, right of the dish. In re-examining the reference pics, it is clear that the method used to finish (paint) this area on teh original was a bit different than in other parts of the model. I have been paintnig out the larger dots and adding in more and finer dots, and hence darkening these areas a bit.
But now I am second guessing myself, as I am messing with the overall color tones of the model. Currently, the city scapes on the upper and lower (right hemisphere) pretty much match in tone. If I continue darkening the lower may be a tad darker. But in some ref shots (at least of the model as it is today), the lower is a bit darker in these areas.
Analysis paralysis.
I'll post pics later so you can see what I am talking about.