Here are some photos of my (work in progress) Star Destroyer bridge diorama playset. My diorama is by no means to scale, and not necessarily movie accurate. There are a few things that I did differently to adjust for the size of diorama I was making.
I took the advice of AresX and used MDF board to make this diorama. I originally started with foamboard and when I went to paint a base coat the whole thing warped! The MDF (medium density fiber) board is easier to work with, to me, because I have really nice compound mitre saw to work with.
However, I think if I were to invest in the best materials, I might try my hand at the polystyrene (plastic) sheet goods that Owen Driscoll has worked with. But until I feel the need (and have the cash) to upgrade to the plastic sheets, this diorama will serve it's purpose.
The computer bay (pit) was made with MDF board and a thin sheet of polystyrene. The boxes on the walls were made from pieces of wood yard sticks and paint stir sticks. I got the decals from Nuibnuib's website and just customized them to fit the sizes I need.
The main computer terminal is still a work in progress. It is made from a combination of Lego parts and paint stir sticks. The movie prop would actually seat six (6) Imperial techs. When mine is done, it will only seat four (4).
Here is an example of where I sacrificed movie accuracy for "playability." To me, the side alcoves on the bridge are just wasted space, so I made the opening a little wider and this area will actually house the grey computer terminals where Capt. Piett discovered the location of the Rebel base on Hoth. The computer terminal will be removable to allow photos to be shot through the door opening into the bridge.
The viewports were made from one (1) inch thick MDF shelving boards. The computer terminal in front of the viewports are made from wooden yard sticks and paint stir sticks. I still have to do some putty work and add decals.
Better shot of computer bay (pit) and my work in progress computer terminal.
Obligatory bounty hunter photo. Didn't realize it was out of focus. The Nuibnuib print in the background is just a place holder.
As far as color scheme goes, I went with more blue than machine grey. I actually think there is a continuity error throughout TESB about the color of the bridge. In the matte paintings the bridge looks more blue, but actual set pieces look more machine grey (to me).