Here is the result from a workshop demo made for my second year game art bachelor mostly.
Subject is to make a rooftop design for a slightly futuristic bar for several locations, potentially for a kind of game hub for a fictive project.
Obviously my example takes place in Paris with some kind of Art Nouveau overall look.
Process is to design props first, modeling them in Blender roughly, generate a greybox render and a freestyle pass to extract a basic line. Then go into Photoshop to composite and refine the line, and make another pass of indirect color, photobashing and stuff.