I knew what a wanted — an old fashioned looking wall with old-timey pictures of my relatives hanging on the wall. I also wanted a mantel with more photos standing on it that would run along near the bottom of the book cover.
I tried initially creating the cover in a paint program — layering elements together (wallpaper, photo frames, photos), adding drop shadows, but it wasn't coming together.
So I went to Lowe's and bought a 4' x 8' sheet of 2" insulating foam or some such, bought what looked like the oldest-fashioned wall paper, a gallon of paint, etc. In the end I messed up the lighting, but I suppose that is something I am still learning in photography. But I still liked the result.