Is your new female kitty a real girl or more of a tomboy? Many female kittens can start out like a real ragamuffin only a few months later to turn into a cat with refined manners, good taste, and superior cleverness.
That said, some people have a girl cat that never outgrew her rougher tendencies and continued to improve upon her stealthy moves and outstanding pouncing abilities - her claws were like a Japanese samurai's sword! So what to name these elusive personalities?
Well, if you go with something more generic like a human-type name it won't be a problem because the name Lily doesn't really relate to your cat's tendencies.
If however, you start out with a refined name like Baroness and your cat turns into a bloodthirsty mouser, then name will carry more than bit of irony. Watch your new girl or girls for a few days and see what tendencies appear, then take a look are list of kitten names for females on this page, and you'll be just fine in choosing a fitting name for her.