arch brick bridge canal countryside England english Great Britain little nature peaceful quiet reflections river rural small spring Sussex tiny tranquil water alone autumn fall field lone natural oak one outline Quercus silhouette single tree winter boundary castle Causeway damp edge exercise green landscape margin marshy meadow ruins stroll walk walkway animals domesticated farm graze lambs mammals peace sheep South Downs track valley ancient architecture buttress checkered chequered christian church cobblestone elements flint historical old religion religious stone tower window cloud Devil's Dyke dry hillside path shadow stormy sunlight weather botany California Tree Poppy Coulter's Matilija Poppy flowers garden Herbaceous plant perennial petals Romneya coulteri summer white yellow Buckinghamshire Chiltern Hills cumulus downland Downs escarpment grassland Natural landscape plain plant sky view Adoxaceae berries berry black bush developing edible elderberry red Sambucus nigra wild chimneys community home house lamp light Surrey terracotta tiles traditional village wall windowboxes