different leaf s lance-d, ovate, elliptic, cordate, round. silhouette

aspen autumn background beautiful birch black branch collection cordate decoration decorative design drawn element elliptic fall floral foliage form fresh graphic icon illustration invitation isolated lanceshaped leaf leave linden mediterranean natural nature oak oblanceolate october organic ornate outline ovate palmate park pencil plant round sagittate season set shape silhouette sketch spathulate tree vector vegetation white willow