The majority of Singaporeans live in public housing, or HDB (Housing Development Board) flats. I, too, lived out at least 10 years of my life in different HDB apartments. HDB blocks are monolithic cuboid slabs, sometimes with patterned walls.
At first glance, the HDB blocks look monotonous and imposing. Look closer, and you can see adaptations by people living within which give the apartments character as the blocks get lived in.
Living in such high density housing means that wide swaths of the sky is often not viewable. But nevertheless, sunsets can still get quite interesting as the lighting changes.