After strawberry jelly is set, dip biscuits in passion fruit juices until soft but not mushy, 10–20 seconds per side. In trifle dish, layer juice-soaked biscuits on top of strawberry jelly, then half of the vanilla pudding, and line edge of dish with strawberry slices. Add another layer of biscuits and pudding. Finish with edible flowers and final layer of pudding. Serve with whipped cream.