I think I know what he means on the columns.
For example, if the column was 1x1, then for the top part, you could have a 1x1 round, then a 2x2 round, then a 4x4 round connected to the bottom plate of the roof. (All plates of course.) Basically, he wants the capital to get wider and wider until it connects to the building. That way it looks more fancy than just being straight and the same thickness form top to bottom. Not that wide probably, but that's a simple example.
Am I right Jammy-Boy?
The tree and stone ring look great, as does everything else. The off-the-grid look helps it look odd and crooked, and not quite right, which is perfect for this film. You're just overachieving to a nigh-lethal degree, you know that right?