abstract aged backdrop background grunge grungy paint paper rough rustic rusty scrapbook series surface texture variations vintage wallpaper dew dewdrop drop drops falling in drops pattern rain raining rainy spring water wood wooden angled angles appearance architectural architecture building buildings city contemporary contrast contrasting corners distinctive edged edges elements exterior external framed frames geometric geometric-shapes glass gray grey height high high-rise light linear lines modern patterned patterns perspectives sharp sharp-cornered sharp-corners Singapore straight-up-and-down surfaces textured textures views wall walls windows