Medieval female knight in action, galloping on a white horse, striking a heroic pose, detailed face and expressive eyes, masterpiece quality, photorealistic 8k, inspired by the styles of Jeremy Mann, Sandra Chevrier, and Maciej Kuciara, featuring sharp details and realistic shadows, holding a gleaming sword, additional elements like flowing banner, sunlight filtering through clouds, lush green landscape in the background, subtle emphasis on motion and grace, harmonious blend of colors, low resolution, pixelated elements subtly incorporated for artistic effect.