One short Day in the Emerald City

I'm kind of a musical aficionado and it so happens that "Wicked", one of my favorites, just had its 15th Broadway anniversary in November, so I drew some inspiration from the story of the Wizard of Oz to commemorate the occasion. The build is supposed to represent a part of the Emerald City. Since it's a physical build, the selection of parts is limited to what I could find in my collection, but I tried to make it as interesting and varied as possible. Since the Pop-Up Book uses dark green already, I resorted to other shades of green for the roofs and wall. I also tried to add interest by having at least a functional feature by ways of the door and Oz the Great and powerful peeking out. Since I don't have that many minifigures, yet Oz is basically a con artist in a dapper suit, H.C. Andersen from the story book bonues set earlier this year had to stand in.