Gray Formal/Bridesmaid Dress

I got this dress off of Amazon for a wedding wasn’t sure which size to get so ended up with 2. Has a built in bra. The smaller one was only worn for the wedding and the larger one was only worn to try on. In great condition with no flaws! Not sure which size they r. Pls refer to measurements. Smaller Length: 55 1/2 inch Waist: 14 inch Armpit to armpit: 17 inch Larger Length: 59 inch Waist: 16 1/2 Armpit to armpit: 20 inch