I want to create a mens dating advice book with lots of diagrams. It's gonna use a retro military theme. Approx 20 pages

I'm creating a playful dating app advice book for men. The style will be like the one I've attached and will have flow charts and diagrams throughout it. Just one attached you can see here. I need it to be ready for printing when we get to it and overall help making the book look professional. There will be maximum 20 page spreads (20 diagrams) with some writing on one side of the page and a diagram on the other.