That is looking realy, realy good Dave and you haven't even added decals and grime yet.
The 2012 is a bit spooky. Now what is realy creepy is that you can get the remaining 12 and 21 to get 2012/12/21 by using the 3, 4 and 7 that is on the ref.
Question: what gamma settings do you have on your MR sun and sky? On my monitor it's a tad dark.