Step 1Combine garlic, cilantro and orange zest in small bowl. Mix well and set aside.
Step 2Bring chicken broth to simmer in small saucepan. Heat oil in 3 1/2- to 4-quart saucepan or Dutch oven over medium heat. Swirl to coat pan, then add onion and saute until soft, about 3 minutes. Add rice and stir until grains are well-coated with oil, about 1 minute. Add wine and bring to boil.
Step 3Add 1/2 cup broth to rice and cook, stirring frequently, until rice has almost completely absorbed the liquid. Adjust heat so risotto is kept at slow simmer. Repeat, adding 1/2 cup broth at a time, reserving 1/4 cup. After about 18 minutes, rice will be plump and cooked through but will still have a nice texture.
Step 4Add shrimp, tomatoes, cream and remaining broth. Stir gently 1 to 2 minutes, allowing some of liquid to be absorbed and shrimp to heat through. Add pepper to taste. Spoon risotto into warm flat bowls, garnish with reserved garlic mixture and serve immediately.