Hirschwin - WIP 1

For the past little while, I've been obsessed with this shot by @Dmitry Palagin : http://drbl.in/koGL

I've been trying to make little city areas in a similar style and I want to have them be looping, seamless screensavers on a website, but I've been getting wildly stuck trying to design buildings and cities. So, I'm trying to make just one building and stick through to the end on it. This is a building I'm starting with, very much a work in progress. Posting to dribbble so that I have to follow through