Do these have to be facing pages?
My facing pages don't match (like Rachel & LeeAndra said, unless they're about the same thing), but I will move things around if I look at them & feel like they really clash. I do not scrap or print in chronological order, though, and I'm pretty laid back when it comes to my printed projects (just happy to have something on my shelf/in my hands!) Someone else might look through my books & feel twitchy