I would add some cinnamon and even some fresh shredded carrot. Add some real cream cheese to canned frosting and mix together. When frosting a cake I take a narrow offset spatula and put rows of wavy lines across the top of the cake. Then I sprinkle chopped walnuts or pecans on top or some green and orange sugar crystals. I made the two carrot cakes below from scratch but you can see what I was talking about with the toppings.
MJ
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