abstract backdrop background blended change changing coast colors colours currents ebb and flow foam foaming froth light movement ocean pull ripples rippling salt-water seaside shore surf surface texture textures tide troughs vast vibrancy vibrant wallpaper water wavelets waves appearance dips dusk early evening reflection reflections salt water shades sunlight surfer swimmer surf board beach coastline color colour distance distant ebb-and-flow expanse Indian-ocean peaceful powerful sand scene seashore sunshine view views western australia clouds dark footprints frothing horizon seaweed sky tracks Western-Australia