It felt at first that the foldout sections were a bit forced, that because the folded-up picture was stuck in, that the resulting paper was a bit heavy and dangly, that it didn't seem an organic part of the book, in the way that foldout pages bound into a book are.
Then as you went on, I began to enjoy how the images fitted into the foldouts quite cleverly. The image of the white man with the African men behind him reveals more and more with each fold out. And the two-way colour foldout with the man looking at himself in two (or is it four?) different ways is clever too.
I guess having the pages stuck on rather than bound in allows for this kind of variety. What it does is force the reader to take time to work through the folding/unfolding; this brings a hint of effort into the journey, which might be a bit like the journey that our protagonist is on. I'm still trying to decide if this makes me feel disconnected from the images themselves, or if it makes me more empathetic to the character.