Reformation dress in style “poppy” in the shade “champagne” size 10

the dress is so lovely and I regret not exchanging it or the correct size. The color looks like a muted blush pink. Lots of heavy flowy fabric. I can’t get my sizing right for reformation so this one is big for me. I’m usually a 6 and always feel like reformation dresses are a bit tight on me so I got a 10. New with tags. There are mysterious marks looks like makeup that can probably be easily removed but I’m not attempting it cuz I’m scared. Markings are inside one of the sleeves and also in the back. Price reflects flaws.