It's weird but awesome to see someone get my thinking, heh.
The sketch is really quite similar to the one I put together after posting the floorplan - which is quite spooky. The rib cage had more of a 'C' shape in mine, the the pit for the Conn... door placement different (Looking at the ship I wasn't sure there'd be space as I had the walls as the edge of the top level - so put the only door on the back)
I like the comms console on the back. Oddly similar to one of the first ideas when I got pencil to paper - but ditched it with the door issue I had in my head. Though oddly my thought for that came from the sonar console in Kelsey Grammer film Down Periscope
Very nice - particularly the parts above the Conn in the Captains view.