I was just thinking the other day after showing you how to add your own backgrounds that I could also show you another great tip for using backgrounds. You can apply this to your own backgrounds, but also the ones that are already in the software when you download it.
Instead of using the image or photo for your background as is, try setting the opacity of the background to 50 or 60% and then add the photo or photos to the page at 100% opacity. This really makes the image or photo a background as they can some times be quite overwhelming at 100% opacity.
Have a look at the example below: