A brown and white guinea pig sits centered against a cream background, its round body rendered in warm watercolor tones with careful attention to fur texture and coloring. Thin lines radiate outward from the animal, each labeled with anatomical terms that map the creature's features from nose to rear end, creating an educational yet whimsical diagram that treats this small pet as a subject worthy of scientific study. 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.