This is a bachelor degree project of a friend of mine. Based on Sketchup file (that had to be cleaned up and modified a bit), OSM data, Google Warehouse models. All done in Blender, trees from Evermotion collection (didn't have time to play with sapling). Post in Gimp.
Time was short on this one but generally I'm satisfied with effect.
People textures by http://skalgubbar.se/