1/600 Paper Building

I've been trying to make some quick and dirty building for my 1/600 moderns. Here is a paper building I made recently. It is a "proof-of-concept" prototype model to see how I can make them with an arcade. Its pretty simplistic, but I am pretty happy with it and can easily scale it up to 1/300. I have access to Adobe Illustrator, so I can make modifications pretty quickly. The arched openings of the arcade would probably be smoother if I had one of those computer stencil cutters, but for such a small scale, I am not going to be too picky.

Initial build before I added the roof and base.An
Oddzial Osmy BTR-60 is parked outside.

Roof and base added, then quickly painted. The
windows were inked in with a Sharpie pen.

Here is what it looks like next to a 1/285 building, which is a
Mediterranean villa from Gamecraft Miniatures