Unfortunately, the hairstyle is not very good at repeating in PonyXL v1.0.
You can also try other settings.
I use the Adetailer.
I recommend using:
SD 1.5 v1.0
Sampling method Euler a, weight 0.8, 30 steps.
PonyXL v1.0
Sampling method Euler a, weight 0.8, cfg 5.5, 30 steps.
Promt: score_9, score_8_up, score_7_up, BREAK source_anime,
PonyXL v2.0
Sampling method Euler a, weight 0.8, cfg 5.5, 30 steps.
Promt: score_9, score_8_up, score_7_up, BREAK source_anime,