blue coast current engulf fierce Great Britain natural nature overwhelm Pembrokeshire pour rocks sea seethe seething smash spume swirl united kingdom violent wales water waves welsh abstract background chaos colors colours complexity computer generated digital dragon Fractal graphic illustration infinity mandelbrot mathematics pattern repetition science self-similar self-similarity technology texture wallpaper brick brickwork building Cardinal directions church Derbyshire east England english facade lamb north pastoral roof sheep shepherd south tower weather vane west wind vane bridleway countryside dirt road environment exercise fence fields footpath green landscape path rural South Downs spring Sussex track trail view walk distance field long national park peace sky summer tranquil bird calm canal nest nesting overgrown peaceful placid quiet reflection river Salix secluded swan tree willow architecture citizen city color europe finland home house old people shadow snow street sunny town traditional winter wood wooden biome forest Leith Hill natural environment Natural landscape nature reserve ride Surrey trees vegetation woodland beach cliff clifftop coastline Cornish cornwall hard hillside inlet ocean shore stony surf tide animals cloud domesticated farm graze hill lambs mammals meadow valley