Hi and welcome to SBB, we can't reply to your questions about how to choose photo's since you closed/locked the post!!
So it is not that we are ignoring you at all, people just can't reply to you.
There are many sketches that use more then just 1 or 2 photo's in a LO. The only thing with adding to many photo's to a LO is that the size of the photo's is rather small and if the photo's you have are wonderful like it sounds. You might want to consider just carrying the same theme through to multiple page Lo's until you use all the photo's that you feel go together. Then if you make a book just place all the matching pages together in order.
hth's
