Seriously, all I'm saying is there are no big revelations here. I've not seen these particular photos, but they don't add any new information other than a more square on view of the backdrop and the engineering set as unfinished. Speaking of that, I think some people misinterpret the photo looking down the core, because the shot is clearly from above the set (probably from the catwalks), not from withinin the set (as per Kirk's POV downshot in the film). If you count the number of ring sets, the set contained 5 (including the one at the "ceiling" above Kirk as be gets into the lift), which is exactly the same as in the "from the rafters" shot. it looks like the painting has been started in that photo, but it's far from done.