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mmm I'd like the horizontal version better if it were more centered. I like it because it looks more abstract to me.

I intentionally placed the vanishing point in the optical center for the horizontal shot and dead center for the vertical version. In general, I prefer horizontal images to vertical ones, depending on the subject.

In this case the horizontal frame gives some more depth to the aisle.

I like than one. The vertical add unnecessary information. If there were people siting close to the camera then vertical would work better than an empty shot