I have a newbie question. What's the exact format in the negative prompt for Illustrious so characters won't share details between each other?

For example
>1st girl, Fa Yuiry (character), black hair, medium hair, blue eyes, nude, small breasts, wet hair, wet body, surprised, open mouth, back against wall, dark room, shower, bath, water falling, steam, mist, fog, 2nd girl, emma sheen, short hair, brown hair, green eyes, large breasts, nude, asymmetrical docking, french kiss, very aesthetic, cinematic lighting, volumetric lighting,

Sometimes Fa gets short hair and large breasts or they both share the same kind of hairstyle or hair color. So how does the negative prompt need to look like?

This is how I have it
>1st girl large breasts,1st girl smiling, Fa Yuiry smiling, Fa Yuiry large breasts, Fa Yuiry short girl, Fa Yuiri brown hair, 2nd girl small breasts, Emma sheen with small breasts, emma sheen black hair, Emma sheen with medium hair,2nd girl having medium hair,

Have a Misty to contribute to the thread.