Look at the version model information for a reference of how the original character is supposed to look like (it's one of the dataset images).
Since this is an XL model, and XL prompting is different, I suggest you use these trigger words instead to get Kotone-like images.
A chibi girl with short light blue hair that has a curved ahoge and blue eyes Kotone Shino is wearing a blue jacket with a shirt with white and blue stripes underneath while wearing a short brown skirt. She has white leggings and brown mary janes shoes. She is smiling.
