A technique I use to make sure that I bake delicious scones that are also beautiful, is to prepare the berries to show on top of the baked scones in a nice arrangement. Cut a piece of parchment paper to fit the bottom of a pie plate.
Take a portion of the berries, about 1/8 to 1/4 cup, depending on the size of berries. (smaller berries can be spread out more easily so you don't have to use as many)
Spread out the berries evenly on the parchment paper.
Carefully transfer the pie plate with your placed berries into the freezer for at least 20 to 30 minutes. This stays in the freezer until the dough is made.