Peonies are associated with romance, prosperity, and honor in Chinese tradition, and more broadly with femininity, healing, and compassion in Western floral symbolism. They're a popular choice for people wanting a large, detailed botanical piece that reads as elegant rather than delicate, since the layered petals give it visual weight. Some choose it simply for its full, ornate bloom shape without attaching specific meaning.
Where it sits
The tall stem and full bloom give this a strong vertical flow, making it suited to forearm, upper arm, thigh, or spine placement where the length can stretch out naturally. The wide flower head needs room to breathe, so it would work well on the shoulder blade or outer thigh where the bloom can sit as a focal point. Shrinking it below the wrist or ankle would crush the fine petal linework and lose the layered center detail.
Making it yours
Ask an artist for any of these.