set of colorful botanical sketch of various marigold flowers with shading. color floral natural drawing. outline pencil

abstract aromatherapy art beauty blossom botany branch calendula care color colorful cosmetic daisy design drawing drawn engraving etching field floral flower flowerhead foliage grass grassland green growth hand herb herbaceous herbal isolated leaf leafage line linear marigold meadow medicine nature orange organic pencil petal plant set sketch spring summer tea vector