More thinking on square format.
The following images are rectangular images taken on our last trip to Japan (all taken in the same hour for consistency of thinking). All I have done is impose a square shape on them. The reason I have not in the past is simply a lack of this as a focus in shooting and processing. processing square in the past felt like just another, even less compatible shape in a mess of different shapes.
In each case I find the square stronger and cleaner or at least equal to the original. Some of the images were not even on my radar until changed to square format.
The first five sets are definitely better square, the six and seven could go either way, but remember they were shot to be rectangles, and eight is much stronger square. Also, they can now be used in sets as triptych or 2x2 format blocks.
maybe a book of 4 panel groups? A bit like a book of Haiku. Maybe a book of Haiku about sets of triptych sets?