Robert Comsol wrote:
But then again, there is this shot from Is There In Truth No Beauty?. Obviously, where the bridge segment tops meet to form the "half-dome", the ceiling then shoots 90 degrees upward in a cylindrical fashion. This makes my version non-canon.
Oops...I overlooked this one. However, in contrast to the one from the pilot it rather looks like an added (unfolded "Forbidden Planet" style?) structure than permanently attached, but that's probably owed to the hectic of production, so we might not need to take it literally, necessarily.
It seems to shoot vertically upwards, but there's not really enough reference points to say categorically in-universe
that it's actually the case. I could easily interpret that to be a curved ceiling with an odd pattern (on the segments). The shot is static, after all. Ditto for WNMHGB, but the view of the ceiling is much briefer