The Hotel entrance shot has only actors shot on a green screen. The front gate was a 3D model which I only enhanced with textures. The hotel itself is a full matte painting based on client's project papers. The commercial was shot before the start of its construction works.
Same story for the Asian Gate, everything was matte painted. I could not rely on a 3D model of the gate because the 3D artists team was focused on creating and animating the rollercoaster behind. So I made it "faster" in Photoshop.