Lilly and Emma are too overused these days. I've never been a fan of Brooke (and with a 1 syllable last name, I don't know how well it would work), Emily is too plain - there is nothing special about it to me. Audrey is a beautiful, classic name. I can see it on a baby, or an adult and it is a nice name without being overly popular. The best of your choices, definitely!
Re: Girl name- please vote clicky poll
1/12/13 DD was born
4/9/16 DS was born
9/17 CP
6/23/18 BFP EDD 3/4/19
No more Emma!