architecture blue bright Great Britain home house neighbours painted Pembrokeshire pink red rose terraced wales welsh windows arches dam Elan Valley hold landmark landscape old reservoir retain stone tower wall water back homes houses lane pavement road sidewalk street suburb town village cloud gray green grey hill nature rural storm stormy trees view woodland boat cliff coastline crack fissure horizon rock sea stack united kingdom Armeria coastal flowers natural spring summer thrift wild danger drop Gower head outcrop promontory steep turf vignette worm background bush cover dense erica flower gorse heath plant Prickly purple spiny texture Ulex yellow Aberaeron anchorage boats dinghy harbour moored quay safety shelter yachts