Welcome to Blender-City.

Would you like to live in this city?

A good color scheme.
But this city is empty. It would be good to spice it up by adding people , dogs, cars…(IMO)

If you’re going for a toy look, then I say you have largely gotten it spot on (it just needs a better asphalt texture with sharper details and some cars).

Thx both for your advices, they will be very useful in future designs.

Thx again for your time!!

I like it very much. It seems a vintage architectural plastic!
Materials and light are great. Did you use cycles? how many lamps?

Looks good