Closeup of a beach shoreline with small pebbles, smooth stones, and a dried seaweed strand among gravel and sand, capturing natural textures and coastal atmosphere.

beach pebbles stones seaweed natural texture closeup shoreline coastal gravel sand rock shell outdoor pattern background organic weathered earthy miniature composition detail macro nature ocean driftwood gray gray brown blue tan light shadow pebble surface geology moisture wet dry up serene tranquil calm beachside coastalzone