I need three illustrations or 3D-renderings of three different locations that are used in a science fiction books series. The locations are artificial mega-complexes that house between 100.000 people up to a million in the larger ones. These mega-complexes are located in different places (Japan/Madagascar/South Africa) in the world and are described in the books. I will provide a short description of each location for you to use as inspiration. These illustrations will be used for marketing purposes, so it's important that they are grand and impressive.
To give an impression of the idea of these mega-complexes, I attach the book cover from the first book. I look forward to hearing from you.