Sounds great Jim!
I really like the lead voice wth the melody - is that with your wind controller?
As per your mixing method (in the description on the Soundcloud page), could you not export your stems without having to duplicate the project file, simply by muting all the tracks, save for the one to be exported, and then just rinse & repeat sequentially until you've got all tracks done?
That's kinda the method I use.
(I confess, once I perfect a recording, and editing, I ALSO like to duplicate the project as well before doing any otherwise potentially destructive modifications - so you are not alone in this - it's good practice)
Also - the first beat of the song is like a C0-tuned kettle-drum and I did not realize that had my volume on the computer and studio monitors up around 75% and that first note had me jumping out of my seat as I was startled and did not expect it - so a caution to other listeners - make sure your volume is not too loud when you start the song....
Good stuff Mr. Hanks :rock: !