Missoni collection dress. Never been work tags still attached

Says size 40 but I’m about 5’7 and about 120lbs. I’m in pretty good shape but don’t have much of a chest and I felt like it fit really nicely. Maybe it’s supposed to be worn tighter but I liked how it fit. There’s a built in slip in the dress. Willing to take offers! Light purple Dry cleaning the dress tiny bit of makeup on the neck!