Tribal/Boho sheer summer dress

Purchased in women’s boutique in Austin TX - never worn. Dress has 2 layers, black spaghetti strap polyester underdress with sheer mini prayed colorful overlay. I am 5’9” and it was always a little too short for me. Size says Large but I usually wear 4-6 in dresses. The sash tie makes the sizing somewhat flexible.