sea and sky meet backdrop. greenish ocean water, waves and blue sky watercolor background. nautical clipart for nature

sea ocean watercolor clipart background seascape marine coastal backdrop illustration blue green water sky horizon nature nautical design scenery aquatic beach shore oceanic surface line scene landscape theme scenic wave coastline gradient turquoise life color surf wavescape seashore summer seaside view breeze peaceful serene calm tranquility sealife aquarelle watercolour clear