Explanation of the images: --If you don't wanna know, don't read ahead.--
Okay, so simply, the photos are the memories of a woman, the grandmother of the person shown in the last photo. The grandmother was always a bright and happy young woman, she went into modelling and soon after into dancing.
During her dancing career, she met a man whom she danced on-stage with. She and the man fell in love, got married, and had children. The family grew steadily and the memory book of the grandmother was passed down each generation. The reader (shown in the last pages), takes up dancing. To keep her memory alive.
I don't expect you to be spot on, but if you got something like that, let me know in the comments!
Thanks for reading!