( Sydney) and received the dresses less then a week later.
I had a baby less than 3 months ago so i still have quite a bit of baby weight. I am 71.5 kg 165 cm tall. I ordered a size L but i think a M would have been fine as well. I think L would fit a AU size 14 or 16 even.
The quality of the dress isn't Amazing however it's decent for the price i paid. It is quite see- through so you will need a petticoat underneath it.
It feels great on and it will be perfect for the summer.
I definitely recommend you buy this dress especially if your body isn't that skinny as it makes you look tall and thinner.