Prepare acai purée: In a blender, add banana, acai pulp, strawberries, blueberries and a splash of milk. (TIP: Add to blender in that order as adding softer ingredients first makes it easier on your blender blades.) Blend on low until larger chunks are broken down, then gradually increase speed, adding a splash of milk at a time, and stopping to scrape down sides of blender if needed. When ingredients have mostly come together and all of milk has been added, blend on high for 15 to 20 seconds more.
Add toppings: Pour acai purée into a bowl and arrange toppings in stripes of their respective color to form a rainbow: from left to right, arrange blueberries, kiwi, banana, pineapple and strawberries. Sprinkle with granola and drizzle with honey (if using).
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.