When I started this challenge I promised myself that I would have modeled all the objects in the scene (except for plants obtained with forest pack and people added in post) because I think that every 3d challenge is an opportunity to improve your skills.
Well, according to my concept the second image should be referred to a building site so I had some fun modeling some assets that I would insert in the scene.
I worked with 3ds for modeling and Corona layered materials (with vertex paint) for texturing.
Hope you like it.