My character has just walked outside this building. [green one] In 1-3 sentences, what are some words/descriptions that spring to your mind about it? -- Same with this second image: http://i49.tinypic.com/yp6yg.png You just walked up to it. What is your initial 2 line mind explosion of description about it?
Grandiose, in every sense of the word. Covered in exquisite glass fittings. A steep roof the colour of the forestation that surrounds it.
Maybe ask yourself: What do you see? What are some of the images, similes that pop into your head. Relax and don't over think it, just observe. What comes to mind?