A pale yellow swallowtail butterfly with black-bordered wings and delicate vein patterns spreads symmetrically against a soft gray background, while its lower wings feature striking deep blue and magenta eyespots. The illustration combines precise natural history rendering with a calm, centered composition that emphasizes the insect's architectural elegance and subtle color gradations. Printed on smooth white card stock and made to order, artwork on the front, blank inside, envelopes included in every set. A handwritten note that arrives as an independent artist's work.