Between Isla and Eden, I prefer Isla.
I think, to balance out a modern-sounding noun as a middle name, I'd go with something a little more traditional (& not a noun) as a first name. And maybe aim for something with an "h," just like her sisters.
Maybe one of these:
Ashley/Ashlyn
Chloe
Helena
Bethany
Sophia
Last edited by Nancy - Baby Names Editor; 01/11/12 01:13 PM.