I love your boy options! They’re honestly perfect 
[name_f][/name_f]Now for the girls 
[name_f][/name_f] First, here are my favorite combinations from the names you’re pondering:
[name_f][/name_f][name_f]Shiloh[/name_f] [name_f]Valley[/name_f] (Definitely cowgirl! I like the meaning of peace through valleys.)
[name_f][/name_f][name_m]Or[/name_m]
[name_f][/name_f][name_f]Shiloh[/name_f] [name_f]Magnolia[/name_f] (Just as cowgirl with a little more feminine flare!)
Your names as 1sts & middles:
[name_f][/name_f][name_f]Eden[/name_f] [name_m]Alcott[/name_m]
[name_f][/name_f][name_f]Odelia[/name_f] [name_f]Eden[/name_f]
[name_f][/name_f][name_f]Valley[/name_f] [name_f]Evangeline[/name_f]
[name_f][/name_f][name_f]Tallulah[/name_f] [name_f]Valley[/name_f]
[name_f][/name_f][name_f]Shiloh[/name_f] [name_f]Zipporah[/name_f]
[name_f][/name_f][name_f]Anona[/name_f] [name_f]Shiloh[/name_f]
[name_f][/name_f]Revelry [name_f]June[/name_f]
[name_f][/name_f][name_m]Judea[/name_m] Revelry
[name_f][/name_f][name_f]Magnolia[/name_f] [name_f]Vale[/name_f]
[name_f][/name_f][name_f]Kindred[/name_f] [name_f]Magnolia[/name_f]
[name_f][/name_f][name_f]Luella[/name_f] [name_f]Winsome[/name_f]
[name_f][/name_f][name_f]Kindred[/name_f] [name_f]Luella[/name_f] (I can’t help but use [name_f]Kindred[/name_f] twice lol)
As a side note, [name_f]Emmylou[/name_f] by the First Aid [name_m]Kit[/name_m] is one of my favorite songs! Another song that has a similar vibe for me is [name_m]Seneca[/name_m] [name_m]Creek[/name_m] by [name_m]Charles[/name_m] [name_m]Wesley[/name_m] Godwin 
[name_f][/name_f] Also, I love your imagery. [name_f]My[/name_f] uncle, when he was living, lived in [name_f]Arizona[/name_f] & made turquoise jewelry, among other things 