sampling step: 20+
The image will look better by adding the "cel shading" tag
example: Pochi-Style, 1girl, Pavolia Reine 1st street, short hair, body slim, smile, looking at viewer, large breast, bright pupils, short hair, sexy bikini, arms up, armpits, upper body shot, close-up, face focus, white background, standing with crossing legs, cel shading.
I think it would be better to use the "Haruka v2" model