Asymmetric/scarf hem black linen convertible/adjustable dress

Black linen strappy sexy summer dress. Small batch designer. Shown two ways (loose or goddess look, tied at waist). Sold to me as one size fits all but see the mannequin specs below, and be advised I adjusted the straps to fit me pretty much as it fits the mannequin and I’m a size 6/M, 5’7”, 137lbs and the fit was ideal. Worn once, practically brand new, with tags. Unlined. Compare to my other listing of the same dress in silk velvet in “blush” if the black doesn’t show enough to judge by. Mannequin size 10 measurements: Shoulder 15.5 Bust 36.75 Waist 27.5 High hip: 33.5 Low hip:37