angles appearances architectural architecture box-like buildings business district city city scapes city views color colored colors colour coloured colours contemporary contrast contrasting distance distant elements exterior external glass heights high high-rise Hong Kong light linear lines modern office buildings perspectives rectangles rectangular reflections skyscrapers views walls wealth windows architectural elements black interior lighting reflective steel tinted high rise CBD concrete dark shade shady-side Singapore backdrop background blank blue book business college copy copyspace design dez pain education exercise book graphic illustration kids learn letter line lined paper list margin message note notebook office pad page paper pattern red render school scrapbooking sheet shopping stationery striped student texture vector white workbook write writing writing paper xymonau art geometry graph squares big bright building cityscape cloud clouds construction corporate District downtown facade financial futuristic house landmark large metropolis mirror New perspective reflect reflection shiny sky skyline skyscraper street structure tall technology tower town travel urban vacation view window workplace