Here are the doors in the office:
And here's the other side of the office as seen from the street-side doors:
I've also given the exterior walls a few light coats of a basic acrylic black wash to enhance the board and batten detail and tone down the stark white color. The green trim and windows also received a highlight coat of Seminole Green, just a shade lighter and a bit more yellow than the Forest Green I used as the primary trim color. This is to give them a little depth and represent sunlight.
Since these images were taken I've added all the wainscoting and some of the chair rail. I left them separate in order to allow for any discrepancy in height from the floor to the bottom of the windows. However, it has been a real pain to get the chair rail glued in without grunting and grumbling. Even so, the effect is really nice.
I have also built a desk out of balsa for the office, and have a few other pieces of furniture along with accessories like a clock and a phone to go in. Some of these are castings, some printed and some scratchbuilt. I also have a station master, courtesy of Model Power, that will eventually take up residence in the office.
Much more to do, but it's great fun and I'll share more as it happens.