First I think whatever you want to name your child is your perrogative. But since you asked, I think Rowen, how should I put this, is terrible. Please don't do that to your child. Isabella is pretty but not with Rae.
Here is a couple of names that I think is unique and would be great for a little boy.
I think all of your names are great, but I would prefer Bryson Kale for the boy and Addison Brooke for the girl. I was playing around with the idea of Bryce for a boy's name for awhile, and really like your choice of Bryson. Both the girl and boy names are unique, but not so bizarre they will have trouble. Good luck!