If you are using base anima you may want to add a lora or an artist to control the style, if not is gonna have a wide range of results.

IF you have any doubt about how to use tags on anima check my guide:

Anima prompting (Natural + Tags) with LORA | Tensor.Art | Tensor.Art

Sessyoin Kiara Lily from Fate Grand Order

Notable tags: very long hair, black hair, curly hair, double bun, yellow eyes, forehead mark, body markings, dress swimsuit