That's subjective, but traits that fit the stereotype are there; unsmiling and pursed lips, thin eyes, angular jawline. Along with this she has straight hair and the stereotype is most often applied to white women with blonde or colorful hair.I don't know why, but, for me, she kinda give out a "bitch aura" which may cause me to not feel regret or pity when she is being railed.
Still, that's face discrimination on one degree. She's a mercenary so translate the typical usually-male persona to feminine face traits and the face expression applies there too, minus the gritty face detail of male mercenary stereotypes.
It's all fine, sometimes stories where nobody is a hero or good person are entertaining. Think Spaghetti Westerns.