I really like the progression of this song and which directions the chords/harmonies start to take. But I will have to say that I missed a climax, all the melodies were great but they didn’t feel like they paid off eventually. That could also just be me since I’m also not really a choir guy other than in orchestras. It felt kind of like this was more of an intro to an orchestral song that would later open up with the rest of the orchestra. I don’t know how hard it is to use voxos either but the choir did sound really good. I think you did a good job overall!
54 seconds before the deadline by the way, you mad man.
If it helps reduce some stress for future jams: You can create a project page for the jam and just gradually add things as you make them. This is what I usually do so I don’t have to worry about creating the whole project last minute. But maybe you already do this, I don’t know how common of a method this is or if it’s useful to you or anyone else but here it is anyway.