Here is a nice project that was originally not made with repurposed pallets but. why not replacing the white-wood board used for the original project by old pallet planks ? Moreover, glass and wood (Bottle Centerpieces Kitchen)
(Hummm, neat idea, but uncertain on photos wrapping around the corner. The frames could meet up on the edge, but think the frames still might be best if they met in the corner but that each wall had its own photo frame.