Defrost the puff pastry. Roll out slightly on a lightly floured work surface. Cut out butterflies and flowers. Place on a baking tray lined with baking paper. Brush with whisked egg yolk and sprinkle with sugar crystals.
Bake in the preheated oven (electric oven: 200 °C/ gas: level 3) for about 12 minutes. In the meantime, warm up the raspberries slightly, except for a few for decoration, pass through a sieve and mix with peach juice.
Cut the peach halves into slices. Arrange some sauce, peach slices and 1 scoop of ice cream on each plate. Decorate with cream tuff, mint leaves and raspberries. Add the puff pastry.