Creamy Corn Clam Chowder

Name: Creamy Corn Clam Chowder
Ingredients: 2 tablespoons unsalted butter; 1 medium onion, diced; 2 stalks of celery, diced; 2 medium carrots, diced; 4 cloves of garlic, minced; 2 tablespoons all-purpose flour; 4 cups vegetable broth; 4 cups corn kernels, divided; 2 small Yukon gold potatoes, diced; 1/2 cup heavy cream; 1/2 cup whole milk; 2 cups clams, fresh or canned and drained; 1/2 cup Parmesan cheese, grated; 1 tablespoon fresh thyme; 1 teaspoon paprika; 1/2 teaspoon turmeric; 1/2 teaspoon onion powder; 1/2 teaspoon garlic powder; 1/2 teaspoon chili powder; to taste, salt and ground black pepper; for garnish, grated Parmesan cheese; for garnish, fresh thyme