So that looks like a 20 foot distance from the PJ to the wall or thereabouts. How big of an image do you expect to get and how far will the seating be from the screen. I like the design and I'm jealous .
I haven't really thought about it too much, other than planning on having a kind of "shrine to movies" in the stairwell leading down into the theater. (Movie posters, memorabilia, etc.)
Right now I'm focused more on the functionality of the room, getting the acoustics right, how I'm going to do the seating, etc. I don't plan on making this a "theme" theater, or anything fancy like that. Eventually, I might do something like that, but for right now I just want to get it working and sounding good, with a few of the more important basics installed, like a small stage in the front, and a riser for the second row of seats.
I guess the only aesthetic aspect I've put any thought into at this point is the carpet. I'm hoping to get a chance to visit the carpet store tonight after work. I know the basic style that I want for the carpet. Hopefully the local store will have something that comes close.