It was peony season when I took the photos of this artwork. I did a quick Google search on this flower and here is what I found:
The traditional floral symbol of China, the state flower of Indiana, and the 12th wedding anniversary flower, peonies are known as the flower of riches and honor. With their lush, full, rounded bloom, peonies embody romance and prosperity and are regarded as an omen of good fortune and a happy marriage.Telefora.com
Enjoy this illustration!