Olivaceous top size large/ mini dress size XXS/XS

This Olivaceous top is marked as a large. I bought it to wear as a mini dress (I’m XXS). It got pushed to the back of the closet and was NEVER WORN. The material is very flowy. As you can see in the picture I paired it with a brown skinny belt. Measurements taken lying flat: 19” Arm pit to arm pit 20” opening all the way down 27” total length