NWT Embroidered Floor Length Burgandy Gown

I fell in love with this dress from Simplydresses.com and ordered it online but unfortunately it does not fit. I was hoping it would be perfect for a wedding coming up but rather than taking it to a seamstress I’m going with a different dress instead and hoping to sell this one! Returning it would only give me store credit. It’s NWT and of course in perfect condition. The last picture is what it looks like online, the backside is only shown in navy but the dress is Burgandy. Can negotiate price