Crush the digestive biscuits in a food processor until fine.
Mix the crushed biscuits with melted butter until combined.
Press the mixture into the base of a springform pan to form a crust.
In a bowl, beat the cream cheese until smooth.
Add sugar and vanilla extract, mixing until creamy.
In a separate bowl, whip the heavy cream until soft peaks form.
Soak gelatin sheets in cold water for 5 minutes.
Heat a small amount of fruit puree and dissolve the softened gelatin in it.
Mix the gelatin mixture into the cream cheese mixture.
Carefully fold the whipped cream into the cream cheese mixture until well combined.
Pour the mousse over the crust and smooth the top.
Chill in the refrigerator for at least 4 hours or overnight.
Before serving, top with remaining fruit puree and fresh fruits.