I love it. I'd recommend doing something with the ceiling, such as running light blocks or charged crystal down either side of the central ceiling tiles (lengthwise along the hallway), or maybe running additional light bars along the ceiling. It doesn't necessarily have to be lighting. It could be something more passive. Maybe even just use different colored armor along the edge of the ceiling. Maybe wrap the brown across the ceiling, from support to support.
The first picture in the post directly above, with the only light peeking out from behind grille appears to have the right "movie" style darker lighting scheme. The movies definitely liked to make things darker than the television show did. The TV show had light sources everywhere.
I'd actually like to recommend going back to standard armor on the grey panels, to see if it gives them a look of a 2-m-long panel instead of two 1-m panels, side-by-side. On the other hand, those texture lines look great to me.