Ok I admit it, in this case I am the copycat! I saw Helena Christensen in this beautiful nautical dress with puff sleeves by Sonia Rykiel but could not quite find a good enough copy.
Until I discovered this gem from the current AW collection from Tommy Hilfiger Denim with long sleeves for autumn. Also available in navy with white stripes! Do it like Helena and combine this dress casually with ballet flats.