Medieval female knight in action, galloping on a white steed, striking a heroic pose with her sword raised high, her armor gleaming in the sunlight, her expression fierce and determined, intricate details in her face and eyes capturing her strength, Masterpiece, best quality, 8k, photorealistic by Jeremy Mann, Sandra Chevrier, Maciej Kuciara, razor-sharp focus with authentic shadows, realistic surroundings, her hand gripping the reins with confidence, low resolution artifacts subtly softened, creating an immersive and vivid scene that feels alive and dynamic.