I like the idea a lot. I think the pacing was abrupt, and you seemed a little out of step at times. You should work on relaxing your prose, so that your ideas step to the forefront and not your writing.

Keep up the good work!

Wow. That was really interesting. I really liked how you did the whole graffiti thing. Especially since it was so prevalent in the GN what with the "Who watches the watchmen" but always unfinished. Nice one.