Celtic queen riding a white horse through ancient forest

Cinematic vertical shot, Consistent character design: A striking Celtic queen in her late 20s. She has very long, straight, light blonde hair with distinct shimmering golden highlights. Her facial features are sharp and elegant: high cheekbones, a refined nose, and intense, piercing eyes. She always wears a thick, ornate golden Bronze Age torc necklace around her neck and dark, textured tribal leather garments. Rhiannon riding a majestic white horse at full gallop, her golden hair flowing in the wind. Ancient Celtic forest path, dynamic motion, dramatic lighting, high contrast, 8k resolution, photorealistic epic fantasy style. --ar 9:16