Prepare the matcha by combining it with 3 Tbsp. warm water and sweetener.
Prepare the sakura concentrate by combining sakura powder with 3 Tbsp. warm water.
To make a layered drink, assemble in this order: matcha concentrate at the bottom - ice cubes - milk - sakura concentrate
Notes
You can also put the sakura on the bottom and top with matcha. The result will also look great (but in my opinion, it tastes better with the cherry blossom on the top, so you get that delicious fragrance while sipping):