Trained on 75 images.

I suggest using a weight of 0.8 to 1.

Prompts:

School outfit:
Swap between puffy sleeves for short sleeves and juliet sleeves for the long ones. You may need to put the one you don't want in the negative prompt for better consistency.

oikurasodachi, grey eyes, school uniform, naoetsu high school uniform, necktie, skirt, {puffy sleeves|juliet sleeves}, black pantyhose

Camisole outfit:

oikurasodachi, grey eyes, yellow camisole, bare shoulders, breasts, flat chest, yellow shorts