Interesting... Interesting...
I like where this piece goes. I've only got a couple of gripes.
First of all, you have access to the Mixer in your copy of FL Studio 9, yes? Have you used the Fruity Parametric EQ 2 before? Try it; EQ processes are great ways to shape your sounds. One sound in particular that could use some shape change would be that concert bass drum that's prevalent throughout the piece; with its current sound, the real-world equivalent is hitting the drumhead dead center -- a major no-no in concert bands and/or orchestras for most percussion instruments because it sounds like the percussionist is slapping a mallet against a wet sock. Remove some of the middle to middle-high frequencies (move down sliders 5 and 6 -- play around with their widths and knees, too!) and bring up some of the low to low-middle frequencies (move up slider 2, moving it right a touch and widening the frequency range of the slider). This will give your bass drum a darker, warmer tone that, you'll find, blends nicely into the soundscape.
If you know how to change the root key on the Fruity Soundfont Player, move your snare drum up 6-8 semitones. The result will be a brighter, tighter sound.
Otherwise, I love the progression of this piece and its relative simplicity. Keep up the good work, Shawn.
~Joshy676
P.S.: If you don't have access to the Mixer, ignore my advice about the bass drum -- you could then either lower its note velocities down or find another soundfont.