Add your seed milk, raspberries, mango and bananas to a blender. Blend it up until smooth.
Pour half of the mixture into your bowls. Then add frozen blueberries to the blender with the remaining mixture and blend again until smooth. (You might have to add a bit more seed milk at this step).
Add spoonfuls of your blueberry mixture in blobs on top of your original mixture. Then use a cocktail stick or a spoon handle to create swirls.
Finish off with toppings of your choice and serve!