There's a lot of great comments here. I may have to rethink how I'm planning to use this pictures and exactly how many pictures I may want to use. Photography isn't a strong skill of mine, so it'll be really hard to produce something that will flow well with my text without distracting the reader.
Back to the drawing board. Thanks for the comments, everyone.
Do not give up, but take the advice of those here and get someone to take some pictures for you.
Try it again yourself, with some of the comments and if you do not like them as it is your book then keep the originals.