MILAN — Miuccia Prada continued in a demure mode this season, with a beautiful fall collection for Prada that seemed a natural progression from her spring return to sobriety. This time, however, there were clean-cut schoolgirl and sleek ingenue looks, from bold capes to Empire dresses and boxy jackets and coats. Here, one of the coats, worn with leggings that resemble spats. For details of Prada’s future store design, see page 2; for more on Milan, see pages 8 to 10.