Would this be original ?

For my books, I'm not using many kings or queens for my villains?(maybe only two), I choose to use creatures such as dragons, serpents, the grim reaper, and more. And for the people coming to the world, they grow in stages. They start as warriors and fight to become kings and queens. There are three warrior leaders and when new warriors are born, they look up to the warriors that were before them. I'm trying not to make it sound to much like Narnia because I have several ideas for this series. And my world has an upper world and an under world, not just one place.