Here is my most recent album creation. I made it for two good friends who were married this summer. The color choices reflect the wedding colors. It turned out really well.
It holds 12 4" x 6" photos. Most of my albums are made approximately 6" x 9" with a 1.5" - 2" spine width. Each page will hold one or two 4" x 6" photos. It depends on whether you choose to put photos on the fronts and backs of pages, or just on the front.