As asked.
I think that pictures should present a clear situation that people can understand. A viewer should know exactly what I was looking at and thought was interesting to show them.
So the pictures that I like of my own tend to be fairly simple and not obscure.
I think a title should be unnecessary in most cases and viewers should be able to understand the situation and, I would hope, it would resonate with them so that they can fill in any gaps with their own memories and experiences.
L