Good song here. I think everything flowed together really well.
IMO though, the vocals are a bit loud. But I think that may be due the brass instruments. They kinda give the impression of a "big sounding song", yet the vocals seem to be louder than the instruments. Also, I think that the drums could use a change of pace in the song. Instead of keeping the 8 beat rhythm when you transition to the softer parts, I think maybe they could transition to a 4 beat rhythm in the same tempo. I was also thinking that it'd be cool if you could make a chorus with your vocals for certain lyrics.
I did enjoy the song. I'm just trying to make some suggestions.
