Agreed. We would say Victorian, especially as it appears to be inspired by the TV series "Dickinson" based on the love affair between Emily Dickinson (played by Hailee Steinfeld) and her best friend and brother's husband Sue Gilbert (Ella Hunt).
So effing hot! But the title should be changed to reflect the costumes, which appear to be either Victorian or Antebellum Civil War. How about "Victorian Lesbians"?