Ichie Otonashi from Shoujo☆Kageki Revue Starlight.
It is 100 official pictures and autotags.
Example prompt for stage outfit Ichie:

ichie, 1girl, solo, yellow eyes, long hair, hair ornament, smile, flower, hair flower, looking at viewer, armor, japanese clothes, ahoge, skirt, shoulder armor, purple hair, light purple hair, stage outfit