Saephon
Die young and save yourself
Camera-work plays a large role there, as it's certainly used to emphasize her height at times. During the fight, I think it was a combination of both combatants hunching over and moving/rolling a lot, and also a slightly downward camera angle so as not to make it seem too one sided until she beat him. Her actress Gwendolyn Christie is 6'3" and pretty bulky.