chalk cliff coastline danger England landscape sea seven sisters Sussex white ancient architecture background elements heritage old security stone strength strong wall blue colourful contrast flower flowers honeysuckle scented flowers sky spring summer yellow beak bird dirty eye grass landing palm palm seed palmnut raptor scarce vulture clouds dawn horizon misty natural nature ocean peace water bench cloud creek english estuary Great Britain rest seat mudflats beack feather grey gull legs Sea bird seagull sit wing green high remote rock shadow slope steep storm wild apartments coastal flats homes houses ornamental railing real estate seaside style beach brassicaceae Crambe maritima gravel plant sea kale shingle shore stones stony