blurred and pretty rainbow or multi colored background with organic, free-formed s.

abstract and area art artsy artwork backdrop background banner birthday blank blotches blue blurred boyish boys card celebration cheerful childrens colored colorful colors cropped cyan design element empty festive form free freeformed fun girly green happy horizontal invitation invite kids lavender multi nobody organic party pastels pattern photo pink pretty purple rainbow shapes smooth smudges soft spring square teal template texture that turquoise vertical wallpaper works yellow