I think this is a great idea. A very creative way to communicate to T what's on your mind. It may be a way into talking, but it doesn't have to be. Photos capture lots of details which words sometimes can't. I hope your T will be pleased that you thought of this, and feel comfortable sharing the photos with her
I have shown my T photos and letters, and a video of my home, and I've seen photos of hers. When we have to go through my history in detail I plan to use my childhood photo albums. I'm sure like Perna's T, after about album six she'll shriek "Enough! I get it!"