I've been constructing a shelving alcove out of mat board for the parlour, to get an idea of scale and space. Hopefully, I'll try and construct the real version in wood. The room box has the same problem as my real life house - no walls are straight! However, I think this problem will be resolved when Daviot House is constructed, as I'll make sure the angles are 90°.
I've tried to make it a little rustic, to suit the house - although the parlour will be the most impressive room in the house, to wow visitors, the family who live there are not the sort that live in the grandest of places. So although there is classical influence, it's all a bit more hand made by the local carpenter.
Apologies for the photo quality, a reminder that talcum powder is dangerous for camera lenses!