Kelly: Whenever I hear this name, I think of a cheerleader, even more so when it's spelled with an 'i":
Kelli.
Alexandra: I think of a studious girl.
Annie: Little orphan
Annie! I don't like nicknames as first names, go with
Anne (which I prefer as a middle name).
Riley: I think of a boy. How about
Rylee Anne or
Ryley Anne as the first name?