Her subtle but well-composed outfit exudes class. Check out the neckerchief!
I just wanted to point out how crucial the aforementioned neckerchief is. It's Little Additions like these that elevate an outfit from a reliable get-up to something else a bit more visionary.
These details enourage others to wonder what era or style icon you're referencing, thus highlighting your unique take on these inspirations. In this particular case, I'm loving the demure tying of the neckerchief to further the sexy subtlety of the outfit.