Watermelon Gazpacho

Name: Watermelon Gazpacho
Ingredients: 4 cups watermelon purée (see notes); 2 large beefsteak tomatoes (chopped and seeded + 2 tbsp finely diced for garnish); 1/3 English cucumber (also known as seedless cucumber + 2 tbsp finely diced for garnish); 1 red bell pepper (chopped + 2 tbsp finely diced for garnish); 1/2 jalapeño (finely diced); 2 tbsp good quality olive oil (divided); 1/2 small bunch cilantro (leaves only + 2 tbsp for garnish); 2 tbsp red wine vinegar; salt and pepper to taste