Peel tomatoes and cucumbers. Cut tomatoes, cucumbers, bell peppers, and onion into quarters. Remove and discard cucumber and bell pepper seeds.
Process vegetables, jalapeno pepper, and garlic in a blender or food processor until almost smooth, stopping to scrape down sides. Transfer mixture to a large bowl, and stir in vegetable juice and next 6 ingredients. Cover and chill, stirring often, 8 hours. Serve with toppings, if desired. Garnish, if desired.