NWOT sheer flyaway top

Cute little sleeveless top given to me as a gift but I don't wear sleeveless tops and it is too big. Aztec-type design with little yellow and white triangles. Collared button-down top with silver colored buttons. Sleeveless, sheer 100% polyester. Open, flyaway design on back but does sit flat in own as shown in last pic. Size XL 15-17