5 years ago for my first exhibition etc i shot and selected more good pics in vertical orientation while currently in my new exhibit there are way more horizontal ones.
Do I know why? I have no idea ... what made me change. Or whether I really did change.
I only became aware of this when I selected the ones to show this year.
So, maybe there are blue periods and there are red periods in everybody's work and art?
Now I should recall the focal lengths used as well, should I not. To have another parameter on the pictures selected and shown over the years ....
Life varies. That is my guess. (And the parameters are useless indicators of nothing, I am afraid.)