child girl diving in coral reef. seabed in blue and yellow colors for travel poster, diving banner, t shirts

girl diving character coral travel starfish seaweed composition cartoon underwater seabed background design nautical maritime reef sea children pastime cute vacation fun entertainment activity watercolor ocean marine swim isolated nature art hand drawn poster paint graphic colorful wildlife sketch banners shirt summer clip object element deep water aquatic beach blonde child concept blue yellow colors card kid 39aph39 club banner shirts