I am going to a wedding in a few weeks. Dress code is dress to impress and can't be green. I am a size 20 about 5ft11 tall. I do have a bit of an hourglass shape. I am really struggling to find something nice to wear. I have a dress from seasalt that might work but it feels a bit casual. I have been looking on vinted but I am not sure what would be good. I don't usually wear many dresses, but tend to go for a wrap dress. Budget is as little as possible really! Any suggestions or new ideas would be really helpful!