(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.
Wall mounted corner shelf: I like the design and how it attracts the eye, but I picture this made with reclaimed pallet wood doubling or even tripling up planks that would give it more depth and character.
This bookshelf wall is the dream of every bookworm. How else will you store all your books in your dream home or interior? I always love when bookshelves go over a doorpost and all the way to the ceiling.