Дагерротипный женский портрет

Vintage daguerreotype avatar portrait of a woman from the 1850s, her image on a polished silvered copper plate with a mirror-like reflective surface, dark formal hair parted smoothly, soft gray-brown eyes, faint blush tinted by hand on the cheeks, wearing a high-necked dark dress with a lace collar and a brooch with hand-applied gold tinting, solemn composed expression, the plate's mirror surface reflecting a faint ghost of a studio skylight, visible fine scratches and plate tarnish at the edges with a delicate tarnish rainbow at the corners, the case's dark leather edge visible at the frame border, sepia and steel-grey palette, soft daylight from a large studio window on the left, head-and-shoulders portrait, frontal pose, authentic early-photography process detail with silver reflections and blue-grey plate cast, sharp focus, high resolution, 4k