Well, loefet, what I get is a nice, smooth consistant colour in Wings. But when I open it in NL, the colours look like someone has mixed a couple of litres of vanilla ice cream in the paint, and not stirred properly, as some areas are really bright with inconsistent colours, and others are fine. It just looks a little blurry, like the oject is semi-transparent.
I'm 99% sure that it's something I'll be able to fix, something about applying the material to multiple faces or something. Or maybe I even remember wrong. Haven't made 3Ds in ages...
And Ollie, good luck! Recreating the inside of the station must be quite a job. Remember, buried somewhere in the construction topic lies the floor plans. I'm sure you already know of them and may use them right now, but worth mentioning here.