Early version. You must use popular negative embeddings to get reasonable results.
I've tried to train several characters in one lora
erika,jagoerika,brown hair,ponytail,cleavage,jeans
erika cosplay,jagoarmor,cleavage,ponytail,armor,pelvic curtain,breastplate,greaves,bikini armor
elly,jagoelly,purple hair,twintails,crop top,short shorts,glasses
sophie,jagosophie,long hairbrown hair,red hair,tank top,pants,glasses
clara,jagoclara,brown hair,short hair,red shirt,jeans"