abstract angles artistic backdrop background blended blue color colored colour coloured decorative design details geometric geometrical interconnected intermeshed interwoven light lines overlapping patterns perspectives rippled ripples rounded shape shaped shapes style texture textures vibrant wallpaper art arty decoration detailed edges image images mosaic round surface vibrancy appearance architectural architecture building circular curved dark elements feature gray grey height high points radiating railing rails roof roofing safety secure surfaces bright dots linear lined purple spots textured angled buildings city contemporary contrast contrasting corners distinctive edged exterior external framed frames geometric-shapes glass high-rise modern patterned sharp sharp-cornered sharp-corners Singapore straight-up-and-down views wall walls windows