abstract color colored colorful colors colour coloured colourful colours contour-intervals contour-lines contours geographical geography gradients layered levels light lowland map mapping parameters ridges scale terrain topographic topography uneven variations background black brigh contained dark horizontal layers lines loops red rows wallpaper yellow appearance architecture box bay windows box-like castellated construction crenellation crenels curtained curtains domestic domesticity exterior façade historic home house intervals painted parapet period protruding roofing area structure style suburban two-storey two-story urban view views walls windows