On top, a bounty of berries, juicy and colorful, brushed with a little apricot jam for extra shine and dusted with a shower of powdered sugar, if you should so desire.
You can get a colorful effect similar to horchata con tuna in your horchata paletas with blackberries if you break some of the berries to let them bleed a bit, and macerate them with a little bit of sugar to draw out the juices.