She is Stiliana Nikolova, Europe champion in 2024 and Silver medalist in world championship 2025. Her relevé position is very high. It's great.
One of important thing to do to make the relevé higher is flexibility of metatarsophalangeal joint. If the toes can't bend too much toward instep side, the instep and the heel won't rise higher.
Do some toe flexibility training (toward instep) when you do around the ankle flexibility training.