Prepare the rice. Add rice vinegar and sugar to the boiled rice, cover with a lid and leave to steam for 5-7 minutes. Place the boiled rice in a deep plate.
Combine rice and avocado. Sprinkle avocado with rice vinegar and place on rice.
Prepare the shrimp. Boil the shrimp in boiling water for about 2-3 minutes, adding salt to the water. Peel the seafood and place on the rice.
Add the remaining ingredients. Place the lettuce leaves and tomatoes on top of the shrimp, pour soy sauce and olive oil over the poke.