NWOT woman’s floral tunic trimmed in gray eyelet, size medium

Beautiful top! Variety of colors…pink/purple/red/cream, floral, deep gray verging into a brown and eyelet trimmed, tiny pleats on the chest. There are no interior tags. I believe this to be a medium but please use measurements below to make your decision. Flat Lay Measurements: 19 inches pit to pit 31 inches shoulder to hem