I'm not big on gallery walls, but I like this idea. Make it a small smattering over a hall table/entryway bench, and fill in spaces with small items/letters instead of just a bunch of similarly-sized frames.
Boutique-hotel style Create a boutique hotel-style bedroom with a few essential buys. Start with a soothing base colour on walls, such as a caramel or toffee shade, then add depth with hints of black and a few silver highlights. Layer up pairs of cushions on the bed and frame a series of black and white photographic prints in square frames and hang above the bed for a polished finish.