The exterior is massively underexposed, making it draw too much attention to itself. When you take a daytime photo inside, windows will usually be clipped to white due to the contrast between the dark interior, and light exterior.
Obviously, the larger your windows are the more light can get in and thus the difference in light levels between the interior and exterior will be reduced; but there will still generally be a noticable difference.
Some of the best architectural photography around is showcased on dezeen.com, take a look at their interiors and have a look at how "blown out" all the windows look. For example; http://www.dezeen.com/2013/02/20/ett-hem-hotel-by-studioilse/
Also, the vignette is a bit too strong, I think.