Remember this sketch? I finally put it to use on this page. No photos yet, but you can use four of the recommended size of 2.25" x 3.25" or create your own similar arrangement. I'm trying to choose between photos of my husband and I and pics of me with the boys (both are pretty rare since I'm aways behind the lens). But you can get enough of an idea to complete the layout below.
The third layout is the SPS found here.