The dress is in two pieces which need to be tied together. It's ok, make sense.
But does not match the size chart. I ordered the size that should fit me according to the chart, but because of the way you need to tie the dress, it was too big. I had to alter the dress a lot and make it narrower. So don't make my mistake and order smaller size - remember that the ties on the sides should be wide enough to show the body.
In the size I ordered according to the size chart, the side ties were tied too tight and the body was not visible. And yet the dress was still too big.
About gold chain - it's like one straight chain, I don't know what should I do with it, it doesn't resemble the one on the photo. But I managed to find a way to wear it, although I needed to help myself with a thread and just tie the chain.