Columbia University, architecture program, Low Library, majestic Beaux-Arts building, grand staircase, intricate stone carvings, ornate ironwork, students, laptops, backpacks, sitting, studying, walking, discussing, modern minimalist clothing, jeans, white shirts, black glasses, neat hair, casual makeup, urban campus, Manhattan, New York City, sunny day, soft natural light, 3/4 composition, shallow depth of field, warm color tone.