Use these keywords for best results:

<lora:haruhiro-pony-v1:1>, haruhiro, brown hair, brown eyes, sleepy eyes, slim,

And add those to use his main outfit (omit elements that should not appear in result):

scarf, grey scarf, tank top, black tank top, leather pouch, leather gauntlets, arm warmers, leather belt, blue pants, boots

Constructive criticism is appreciated. I would also be happy to see your creations in the gallery.