bare feet barefooted beach damp beach sand differences different direction footprints impressions opposite prints sand shod shoes alongside female feminine male parallel bare-feet damp-beach-sand heavy rough toes background beige brown damp grains texture wet yellow low ripples tide abstract beak bird concept feather natural nature ocean plumage sea seagull water barefoot evidence feet foot grainy gray grey human indented light not-alone patterns shadows textures tracks calm cloud clouds coast coastal grain shell shore sky wallpaper waterway wave waves abundance backgrounds bivalve colors colours edge edges forthy froth mollusc mollusk plentiful scallop seashells seashore shapes shells Sizes smooth sunlight surface surfaced surfaces textured types variety wet-sand