About the meanings I can say you it could be different for each one is watching the piece and it could be different from the original meaning the artist had in his/her mind for it.
I'd say in 99.99% of the cases it is. Usually I go to exhibitions in the morning, when there's no crowd, or should I say I'm alone in the gallery, t be able to think what I want and have all the space for me to photograph comfortably, but when there are others and talking as well, you find out they have a totally different take on everything.
At the end I think the most beautiful thing about art is to leave our mind and soul free to feel the emotions. ❤️
You nailed it Silvia! 🤗💚