Interesting project.
(http://freightsheds.largescalecentral.com/users/nicholas_savatgy/_forumfiles/2147.JPG)
Is that station a brick building, or exposed beam? It is hard to tell from that postcard. Here is another version of that postcard, from Wikipedia, that shows a much lighter color…
(http://upload.wikimedia.org/wikipedia/commons/d/d7/KingstonStation.jpg)
Hmmmmm, not the same postcard, afterall, is it?