Cute summer dress

Stunning summer dress purchased at a boutique. Worn only once. Great condition, just a tiny stain as shown in the last picture. Tried washing it a couple of times to remove it and the dress shrunk a little. Also the first button’s hook is removed a little, it can be easily sewn I just don’t know how to sew. Other than that, the dress is in really good condition, I received many compliments on this dress.