Other Azul (designer) Dark color unclassified dresses

I bought my dress as a size 8 and it has been altered a tiny bit. For reference I am 5'6 and weigh 135 pounds. The dress has been dry cleaned but there is a little dirt on the 3rd layer of the dress. That dirt can only be seen if the first 2 layers are pulled up. You cannot see the dirt when the first 2 layer are down. The buttons on the back are a tiny bit dirty as well