seashell seamless pattern. for holiday greeting card and invitation of seasonal summer holidays, summer beach parties, tour

abstract aloha and animal aquarium aquatic backdrop background banner beach blue card cockleshell color conch contour coral cute decor design diving element fish for graphic greeting holiday holidays illustration invitation marine mermaid nature nautilus ocean parties pattern print sand sea seamless seashell seasonal shell silhouette simple sketch spiral star starfish summer symbol textile tour tropical underwater vector vintage wallpaper wave