I spotted this dining room photo on Houzz and immediately loved the clustered grouping of the photos. On second look, I realized that several of the frames actually overlapped, creating a three-dimensional effect. Truthfully, I'm torn. I can't decide whether the overlapping in this instance takes away from or enhances the look. I haven't tried this at my home, but I may have to experiment a little to see if I like it on my own wall.