Aha, I see what you did now. The overall length of the shuttlebay is looking quite resplendent now. I hadn't quite connected the dots about the style of ribbing with TMP, but it adds a nice touch of continuity without being heavy handed.
As regards the new observation space at the back of the corridor, I wonder what would be best placed there - perhaps (as it's a 22' shuttle on the turntable) it would be a suitable storage space for a 30' shuttle? (one that would match the shuttlecraft interior set)