Generate Victorian Botanical Naturalist Portraits

Use the provided reference image as the person. Preserve the person's identity, facial features, age, hair, skin tone, body shape, and natural expression. Create a photorealistic historical-era portrait of the person as a Victorian botanical naturalist in the 1870s. Scene: inside a glass-roofed botanical conservatory with iron window frames, deep green plants, a wooden specimen table, pinned botanical sketches, and warm afternoon daylight filtering through old glass. Subject: the reference person shown from the waist up, wearing a period-accurate dark wool waistcoat, high-collared white shirt, narrow cravat, and tailored Victorian jacket with subtle fabric wear. Action and gaze: standing naturally behind the specimen table, shoulders relaxed, face clearly visible, looking slightly toward the camera with a calm, intelligent expression; one hand lightly rests near an open leather-bound field notebook and a brass magnifying glass. Composition: waist-up portrait, eye-level, three-quarter view, face large enough for clear identity preservation, realistic proportions, no cropped-off head, no distorted hands. Lighting: soft diffuse afternoon daylight from the glass ceiling and windows, gentle shadows, natural color balance, no dramatic cinematic grading. Details: real skin texture, visible fabric weave, aged paper fibers, brass patina, worn wood surface, realistic contact shadows, honest and unposed professional photography. Text: no in-image text. Constraints: no watermark, no logos, no extra text, no modern clothing, no fantasy elements, no heavy retouching, avoid painterly or illustrated style, keep it looking like a real historical photograph taken on a real camera.