It's probably just me, but i think this would have turned out even better if you kept the style consistently abstract. i feel this contrast of style between the building and the vector brushing, especially since the red and blue stuff is so bold and saturated and 2-d, compared to the softer more three dimensional appearance of the building.

lol, this scan. x] now if this was easy to vector, rest assured i'd have already walled it. i saw it months ago on deathgod, but a closer look deterred me from walling it. the scan design itself is very interesting but it's not something that is easily made to look nice (you could say i am lazy), so i applaud your effort at this. :D great work.