I didn't expect to clearly see out of windows, mostly because I was expecting early style windows or stained glass windows that you couldn't really see out of.
What I was expecting though was something like a http://tesnexus.com/downloads/file.php?id=18305, or collection of mods, I had that used the outside light and weather to determine interior environments. As far as the windows went; if it was light outside you might get a white, grey, blue, or, orange tint from the window depending on the weather and time of day; if it was dark, you usually got a black window. I am sure they improved the mod since I downloaded it a long time ago. I can't get wrye bash to work on Windows 7 x64, so I can't use it any more.
I hope they at least do something like that mod.