Add milk to pudding mix and prepare according to directions on box (instant pudding may be substituted). Place half of the brownie pieces on the bottom of a medium glass bowl and layer with half of the vanilla pudding, 1 cup of strawberries and 1/2 cup of blueberries. Repeat layers with remainder of ingredients. Serve immediately or cover and refrigerate.
Note: If fresh berries are unavailable, you can substitute frozen berries, thawed.