To tie them all together more, I'd aim for something offbeat-Biblical if you have another girl or something nature-y if you have another boy. Things like Delilah Keturah Sarai Zillah or Caspian Phoenix Canyon Sawyer
I think those are pretty good lists! I could only give you 2-3 names I'd consider using in real life for another kid! :)My top picks would be Aura and River to go with the others.