Henriette Anne was the quieter one of the twins. In Rise and Fall of Versailles this is shown by her not having any lines at all. Henriette Anne was greatly ignored by her brothers and sisters in the past.
Like her twin sister Louise Elisabeth, Henriette had brown hair like their father but her mothers green eyes.
Henriette Anne was particulary close to her twin sister out of all siblings. When Louise married and left Versailles, Henriette Anne was even heartbroken.