Opulent Art Nouveau building, intricate metalwork, golden accents, curved lines, ornate details, luxurious materials, bronze door handles, copper roofs, zinc cladding, grand entranceways, sweeping staircases, decorative railings, lavish ornamentation, natural light, soft warm glow, high contrast, shallow depth of field, 1/2 composition, symmetrical framing, realistic reflections, ambient occlusion.