A question about your streets- are you making them to scale to accommodate jeeps and maybe civilian vehicles from Flan's tanks etc. mods? What is going on with the glass down the center line? (Haven't had a chance to download so I haven't looked for myself).
I really like that black building and its "plaza" with the trees BTW.
I'm not familiar w/ those mods... so I can't comment on sizes. They're 5x1x5 across, 5 black, 1 stipe, 5 black. I just kinda eyeballed it based on the size of a person in MC. The glass in the middle is because there's a torch right under the glass. This is the "reflector" and helps provide light since the glow stone street lamps don't as much as I'd like.
And thanks on the tree plaza! There's also a "green skywalk" that goes around the city, providing an outlet for nature within the city.