blue chalk cliff coast danger England english erosion Great Britain natural nature rock sea Sussex waves white background bark Castanea chestnut crack crevasse crevice fissure hard protection protective rough surface texture tree abundance.profusion abundant array green leaf many minute plant rosette series small tiny cloud field forest grass landscape meadow rural sky summer woodland bush Carpenteria flowers garden petals shrub stamens yellow peace pond pool reflection spring tranquil trees water bizarre clematis cold creepers creepy dark foggy frozen lianas misty scary spooky winter