The major thing that jumps out at me is how stylish everyone was back then. The Men all dressed as men (no meggings or manscara then!) and the ladies were just that, Ladies.
For me, Audrey Hepburn epitomises class and elegance. Her style was so classic, and so many of the outfits she wore are still seen as beautiful today. She knew how to work a Breton stripe, and valued the importance of the LBD, and after seeing the famous Breakfast at Tiffany's dress up close last year, I realised just how amazing her style was.