Plants were in amazing form. Just like the rockwork, it's better to stick with a single sort of plant. Ten good high quality plastic plants of the exact same type may look very good, but ten distinct species just resembles a jumble.
(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.