All you need is a small amount of vertical space around a balcony or an open window which can hang or store a vertical array of drink bottles that can grow all your herbs and lettuce easily. Recycle as many of your plastic drink containers.
Solar powered mason jar lights, I would probably change the design a bit starting with working the panel/light portion into a lid. Using a neat wire design probably hang them off plant hangers on fence posts or to light up a deck?
(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.