angles architectural architecture buildings business-district city city-scapes city-views color colored colors colour coloured colours commercial-building contemporary contrast contrasting distance distant elements exterior external glass heights high high-rise light linear lines metropolis metropolitan-area modern office-buildings perspectives rectangles rectangular reflections skyscrapers tower-block urban-area views walls wealth windows accommodation architectural-elements balconies balcony business commerce concrete costly edges expensive hazy multi-storey multi-story recessed rooftops Singapore surfaces towering towers abstract backdrop background barrier brick brick-wall bricks brickwork cement coloring colouring constructed curved curving firm mortar perspective secure security smooth solid standard strength strong style surface surfaced texture textured textures traditional-brick-wall variation varied various wall walled wallpaper well-built rough-work apartment-blocks apartments appearances box-like boxed building complex dark Designs detailed distinctive flats height highrise metal modernistic plain red shield shielded shielding squared straight structured structures supports tall units