Designer inspired mint high tide flow dress

Designer inspired mint green swing dress! Please advise - i got this and it is NOT lined. Therefore, you are buying a dress that will need to be lined. It is a very flattering cut and swings out!!! I am losing money on it but just want it to go to a good home as I’m unable to return. This is a size large but it is made small - I’m a size 8 and this didn’t fit I would say this fits more of a size 4-6. Please look at all pictures before ordering I included one with me in it. I loved this style as I saw it at Saks on a high end designer, retailing for $1800.