In a large bowl, whip the heavy cream, vanilla extract, and powdered sugar until stiff peaks form. The cream should stand upright when the whisk is lifted.
In a separate large bowl, beat the softened cream cheese and lemon curd until the mixture is smooth and glossy with no visible lumps.
Fold the whipped cream into the lemon mixture using a spatula or wooden spoon. Work gently and stop once the color is even so the mixture stays fluffy.
Spoon the lemon fluff and smashed raspberries into eight individual jars, alternating layers for a clean presentation.
Garnish each jar with extra raspberries and a small mint sprig.
Refrigerate until ready to serve. For the best texture, chill for at least 30 minutes or make up to 24 hours ahead.