If your book was a publisher that enabled you to brief a designer, what 2-3 lines of text would you send them as a brief? How might these images inspire both the chose of image and text/typography? What keywords would you give the designer as to the atmospheric look of your book? What's important, the atmosphere, shapes or the people involved?
If you had to summarise your images into a colour palette and pattern like for Palgrave Pivots, which would you choose and why? What is the symbolism (colour and pattern) would you choose and why? See: https://www.palgrave.com/gp/campaigns/palgrave-pivot