angles appearances architectural architecture box-like buildings business district CBD city city scapes city views colors colours concrete contemporary contrast contrasting distance distant elements exterior external glass heights high high rise light linear lines Melbourne modern office buildings perspectives reflections skyscrapers sleek slim style views walls wealth windows business-district city-scapes city-views color colour gray grey high-rise Hong Kong office-buildings rectangles rectangular abstract angle angled appearance background blended bright checks colored colorful coloured colourful decorative design details interconnected interlinked interwoven lined mat mosaic patterns pink red shape shaped shapes squared squares texture textured textures thick thin tiles vibrant wall wallpaper blue curve curved flowers garden pointed points