Paris —

After a month of designer debuts — more than a dozen across fashion weeks in London, Milan and New York — the task fell to Chanel’s new artistic director, Matthieu Blazy, to present his vision for the future of one of history’s most storied houses.

Bringing Paris Fashion Week to a close on Monday evening, the highly anticipated collection reveal was held where Chanel has frequently staged shows since 2007: the historic Grand Palais, which recently underwent a multiyear, $500-million restoration .

The set wasn’t just a whole new world, it was an entire solar system. Enormous glowing planets hung overhead; others were installed at ground level, punctuating the venue’s gleaming black floor. Stars including Margot Robbie, Penélope Cruz and Pedro Pascal sat front row, as did th

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