Like this in American English...
1. In this photo, a man is kicking a ball.
2. In this photo, a girl is singing a Christmas Carol.
3. In this photo, a boy is crying because his father has been shot.
4. In this photo, my mother is hugging her friend.
5. In this photo, my brother is teaching his dog how to run the agility course.
Or...
1. Oh, this is a photo of when my sister and I went to Hawaii. Look here. I am handing her a rose that I had bought at a florist shop.
2. Oh, this is a photo of when my brother and I went hiking up Mount Skinner. Look here, he is handing me the trail map so he can tighten the strap on his backpack. We were in our twenties when we took this photo. ** Notice how I switched to "he is handing". When I describe what is going on in the photo, I act as though it were taking place as the time I am describing it.
Also...
Mary: What is that a photo of?
Mark: My birthday party last year.
Mary: Is that Dan?
Mark: Yes.
Mary: What is he doing?
Mark: He is trying to hit me in the face with a cake.
Mary: Hahahaha