Damn I think you nailed the theme, the song took me though quite a journey. The composition felt top-notch, the right emotion / feeling every step of the song, goosebumps on that 3:10 passage!
Not sure on the execution, its fine overall, but it depends on the intention, if this is for a PS1 game, awesome, if its for something more modern, we gotta get some reverb work. But most instruments found theyr space, I would maybe wide it a lil bit, maybe some Haas effect would do the trick.
Loved it! Take care :)