Sexy NWOT Green Teal Yellow Ombre Halter Dress M L Keyhole Back

Can’t remember where or when I bought this dress but I’ve never worn it. It’s a fitted, unlined halter style dress that has a keyhole back and buttons around the neck (it’s got a clothes pin there because I couldn’t get it buttoned with my long nails.) there is no damage or stains - it looks like a couple of “spots” in the photos but those are just places that need a wrinkle steamed. It’s marked a size L but I was a M when I bought it. I’ll provide measurements. Note: it’s too big in the bust for my XS mannequin form.