Dude... those are absolutely great.
If I had a do-over, I'd definitely swipe that 'panel detailing on the walls' idea. I tend to blunder my way through a prototype, figuring out how to make it, only to realize when it's finished what I coulda, shoulda, woulda done better. Oh well. You're doing an outstanding job and I'm very much looking forward to the finished product. (In-game shots too!)