Place half the brownies bites in the bottom of a straight sided glass bowl in a single layer.
Place a row of sliced strawberries along the outside edge of the glass. The brownies will hold the strawberry slices in place along the glass sides of the bowl.
Top the brownie bites with half of the prepared chocolate pudding.
Top the pudding with a layer of sliced strawberries.
Top the strawberries with a layer of whipped cream.
Top with the remaining half of the brownie bites.
Top with the remaining half of the chocolate pudding.
Top with another layer of sliced strawberries, arranging some of the slices along the sides of the glass bowl.
Finish with a final layer using up the remaining half of the whipped cream.
Use the reserved strawberry slices to create a flower on the top of the trifle. Place a circle of strawberry slices along the outer edge, with the cut edges facing the center and the points facing out.
Layer another circle of strawberry slices on top of the first circle of strawberry slices. Continue until you have created a flower made of strawberries.
Place a whole strawberry in the center of the flower. Garnish with mint leaves if desired.
Cover trifle loosely with plastic wrap and refrigerate for a minimum of 2 hours before serving.
Serve chilled.