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 modern office-buildings perspectives reflections skyscrapers views walls wealth windows Australia bay boats business district city scapes city views expanse of water harbor harbour high rise masts Melbourne motor boats office buildings passengers Port Phillip Bay sailing ships sailors ships Victoria water Williamstown color colour rectangles rectangular commercial corners height tall architectural elements dark surface surfaces facade black