I like the works of Berlin pixel art design trio eBoy. Chances are you have already seen some of their work somewhere around the web. They build three-dimensional elements and assemble them in huge illustrations filled with heaps of crazy details and references that will make the geek in you happy... Check out Oslo here and here or Tokyo. They have a great eye for picking up and mixing relevant details of pop culture with our daily consumer environment and concentrating them into visual feasts.