spring abstract light green background with a contoured twig with leaves, hand-drawn,

illustration line drawing leaf pattern sketch branch flower plant design art green spring abstract background contoured twig leaves hand-drawn vector decorative for labels banners decoration floral invitation frame frame backgrounds twig outline poster leaf lush foliage brochure flyer leaflet abstract vector illustration nature springtime design summer flower plant art modern botany color simplicity beauty flat elegance decoration template sketch organic color image colored contour drawing element invitation border environmental conservation veganism clean background backdrop banner eco floral