beautiful centaurea flowers with green leaves on gradient background. seamless floral pattern, border. watercolor painting.

backdrop background beautiful bed bedclothes bloom blossom bluet border bud card centaurea centaury centory colorful cornflower decor decoration design drawn fabric flora floral flower frieze gradient green hand illustration knapweed leaf line linen loggerhead nature painted painting pattern plant row seamless spring starthistle summer textile texture vintage wallpaper watercolor watercolour