And finally, place the last puff pastry piece on top.
Your millefeuille is ready to serve.
Remarks
Millefeuilles can be made in an infinite variety of shapes and flavours, but keeping to this basic principle: 2 layers of something soft between 3 layers of something crispy. Just by keeping puff pastry and replacing vanilla cream with a layer of raspberries or strawberries and a lime cream, it's extraordinary.
Be careful!: You can put your millefeuille in the fridge to wait, but not too long: 4-5 hours maximum, never more, never overnight! Because eventually the cream will soak into the pastry, and you will get that horrible limp thing that bad bakers try to pass off as millefeuille.