Congratulations John and Katharina Notarianni. This photograph of a western tiger swallowtail has sold the most copies from their collection of photographs on Dreamstime.
Western Swallowtail Butterfly by John and Katharina NotarianniHTB features nature photography like this western tiger swallowtail feeding on a butterfly bush (buddleia davidii) by John and Katharina Notarianni, available on Dreamstime.