I have a comment about captions: I used full names including last names "John Smith" instead just of "John" etc.
I also did not use "I / we" and used full names talking about myself and my spouse in third person.
Not sure if it matters.
E.g. on photo with proposal where there were just two of us I wrote:
"01/01/2015, Time Square, New York, NY. Proposal. Left to right: John Smith, Anna Brown".
It was pretty much as if a private detective wrote those captions 😃 Factual, short, full names, date, location, occasion.