Nice orchestra you got going on! Brass, Strings, Vocals and a Drum, a nice combination overall. For (idk) film music, a 1-minute buildup feels great but I feel like boss fights typically dive straight into action - that's not something I criticize this song for though, just food-for-thought :)
Overall, the song has plenty of power, great melodies and chord progressions, and a nice build-up (though a bit too slow for me for a boss fight ;). Great entry, well done!