19th century English architecture, grand mansion, Victorian era style, brick red walls, ornate stone carvings, Gothic spires, stained glass windows, intricately designed iron gates, lush greenery surrounding, overcast sky, foggy atmosphere, London cityscape, horse-drawn carriage passing by, dim gas lamps lighting the streets, richly textured stonework, imposing entrance with heavy wooden doors, vintage streetlights, fog rolling in off the Thames River.