Sevens across the board!
It's kinda not classical, I can tell that you used some brass styruses, but that's not enough.
Look up "Soundfonts" on Google. You'll find a site called HammerSounds. It has a bunch of these things called "Soundfonts." You download them into the "Soundfonts" folder of the FL Studio Data folder(in the program files). You'll find some much better instruments. They're so good, you'd be crazy not to use theme.
Onto your song(now that my rant is over). The title doesn't really fit with me very well, it doesn't seem so "Harbringer of Joy-ish". Maybe get another person to title your songs for you. I can tell that you're taking time and working hard, you just need better titles and instruments.
Check out some of my new audio!