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

1st ascension; short hair, purple hair, purple eyes, ribbon, sailor collar, japanese clothes, long sleeves, wide sleeves, beret, bike shorts

2nd ascension: short hair, purple hair, purple eyes, hairband, one-piece swimsuit, see-through, frills

3rd ascension: short hair, purple hair, purple eyes, ribbon, hair flower, short dress, clothing cutout, frills, coat, off shoulder, wristband

Ordeal Call: short hair, purple hair, purple eyes, kindergarten uniform, yellow hat, bag, long sleeves, wide sleeves, bike shorts

Muryan: short hair, purple hair, antenna hair, twintails, single sidelock, yellow ribbon, purple eyes, detached collar, green dress, frills, bare shoulders, bike shorts, brown gloves, brown thigh boots, fairy wings,

Muryan & Kazuradrop FGO [Anima] - 1.0