Really like this style: Edwarian mono-pitch lean-to greenhouse, front cold frames. Would like to create a similiar look using salvaged brick and windows!--only thing I would like to add is the other half and another set of cold frames.
Succulent tree trunk - instructions are not in English but the idea is pretty basic. Tree trunk + removal of some wood + soil, water & succulents = awesomeness in your garden! You could even hang this from a patio at eye height.
structure: I like the cube look, but Aron worries about it not being united with house rooflines. Chunky black timber pergola and lime washed deck. Pinned to Garden Design - Pergolas by Darin Bradbury.