Chicago Architecture Center, modern building, glass facade, steel frame, angular lines, urban setting, daytime, clear blue sky, few puffy white clouds, cityscape background, skyscrapers nearby, busy street scene, people walking by, First Lady of Chicago, Michelle Obama, confident pose, elegant smile, dark hair, pearl necklace, designer suit, high heels, standing in front of the building, hand on hip, warm sunlight, shallow depth of field, subtle bokeh effect.