In a critical sense, these buildings could be a lot better. The fact that none of them have interior is also concerning, but I suppose it's alright for a collab.
This is Bushido's intent. It's much less for full interaction and detail, and more for scenery. Rather than working well for something like a City RP, it would work for a street fighting DM, race, or chase scenes. As he said, each building is very simple but stylish; they are sort of cool on their own, but work together nicely as a larger scale, brick-conservative facade. The sleekness and general similarity of the buildings benefits them. It has a nice overall look, but there isn't too much attention being pulled to the background.