I love the name [name_f]Juno[/name_f]!! Personally out of [name_f]Penelope[/name_f] and [name_f]Mila[/name_f], I prefer [name_f]Mila[/name_f]. I also think [name_f]Juno[/name_f] and [name_f]Mila[/name_f] sounds really nice together.
Some other suggestions:
[name_f]Iris[/name_f]
[name_f]Ottilie[/name_f]
[name_f]Astrid[/name_f]
[name_u]Marlowe[/name_u]
[name_f]Beatrix[/name_f]
[name_f]Maeve[/name_f]
[name_f]Ingrid[/name_f]
[name_f]Flora[/name_f]
[name_f]Florence[/name_f]
[name_u]Wren[/name_u]
Good luck!!