Domina Katarina is stunning. She prefers to mix her sadism with sensuality, tease torture she calls it. Very slender, elegant, and beautiful(I think she has the most beautiful eyes I have ever seen), and very good at getting in one's head. She's not really about heavy punishment, more about sadism and mindfucking.
Her space isn't a dungeon, even though she has lots of equipment, and she's very good at rope bondage and predicament bondage.
Really, it's about what you want. Domina Katarina and Mistress Damazonia are poles apart, but what they share is a very real dominant attitude and that is reflected in their respective enterprises.