dark seamless pattern with campanula doodle silhouetttes. bluebell ornament in blue colors on black background

abstract art backdrop background bell bellflower black blossom blue bluebell botanical bud campanula cartoon dark decoration design doodle drawn element endless fabric flora floral flower garden graphic hand harebell illustration nature ornament paper pattern plant print repeat scandinavian scrapbook seamless sketch spring summer textile texture tile twig vector vintage wallpaper wildflower wrapping