Porcelain Armor Knight on Black Steed

[A female knight] mounted on a [black steed] in an [autumn forest]. She has a slim, athletic build, narrow waist, straight posture, and composed bearing, sitting upright in a dark leather saddle with one leg visible along the flank. Her right hand loosely holds the brown leather reins, while her left hand grips the hilt of an unsheathed, elegant longsword pointed diagonally downward toward the lower left foreground, its blade etched with mystical runes. She has a serious, watchful, and calm expression with direct eye contact toward the viewer, fair warm skin, an oval face, refined straight nose, large light auburn eyes, and long, wavy auburn-red hair flowing over her shoulders. She wears ceremonial full white plate armor with dense ornamental blue painted patterns and subtle gold trim reminiscent of traditional blue-and-white porcelain, featuring a fitted metallic headpiece framing her face, high collar, rounded pauldrons, fitted breastplate, articulated arm guards, gauntlets, and leg armor over dark metallic scale mail and leather straps. The large muscular black horse has a glossy coat, flowing black mane, and alert ears, fitted with a brown leather bridle, ivory-white embossed barding panel, and pale gold trim matching the rider. Composition: Three-quarter view of the horse facing left, with the rider turned toward the camera, framed from head to below the knees. Warm amber daylight filters through dense golden-orange foliage and dark tree trunks, creating soft atmospheric depth with fallen leaves carpeting the ground.