That is an interesting concept. I do the opposite, write a chapter or two and take photos that support; although I have at times had some that sent me in a different direction than I had planned.
I am several chapters ahead due to the posting photo problem, haven't had a chance to check it out, as the kids are inside due to rain. To distracting for me to focus.
Anyhow, that can be an interesting way to do it, creating a story that fits your photos.