Spiced Carrot Cake with Cardamom Cream Cheese Frosting

Name: Spiced Carrot Cake with Cardamom Cream Cheese Frosting
Cuisine: American, Southern
Ingredients: Nonstick cooking spray; 3 cups almond flour; 1 1/2 cups allulose sweetener; 2 teaspoons baking powder; 3 tablespoons ground cinnamon; 2 teaspoons ground cloves; 2 teaspoons ground ginger; 1 teaspoon ground nutmeg; 1 teaspoon ground cardamom; 1/4 teaspoon kosher salt; 1 cup (or 2 sticks)organic unsalted butter, (melted); 4 large organic eggs; 1/2 cup organic sour cream; 2 cups shredded carrot; 1 1/2 pounds cream cheese, (at room temperature); 1 1/2 cups (or 3 sticks) organic unsalted butter, (at room temperature); 1 cup allulose sweetener; 1 1/2 teaspoon ground cardamom; 1/4 teaspoon vanilla extract; 8 pecan halves, (for garnish); Ground cinnamon, (for garnish)