This is the character Baroness Vera. She is used to ruling over her estate and her staff and will tell you what she needs and what you must do. She doesn't smile very often, and she doesn't need to. She gets it done anyway. No real people or animals suffered during the filming.

To push the stone cold expression, use something like as a style:

(supercilious disdainful expression:1.3), arrogant smirk, condescending patronizing gaze, haughty imperious look, looking down at camera, severe expression, (extremely thin penciled eyebrows:1.3), sharp narrow high-arched brows, ultra-thin minimalist eyebrows, intense smoky eyeshadow, dramatic high-fashion editorial makeup, haute couture photography

It seems to be a little portait strong so you have to push it some to zoom out