Macau was one of the later levels for Rigs (2016) that we pushed through to final art quality. The key idea of this map was that you were in one giant casino. The interior section was all about large areas of black, red and gold to give a feeling of opulence. The exterior blue end had much cooler colours to contrast with this.
We originally experimented with a sunset for this level but discovered that moonlight gave a much clearer split between the blue and red ends.