For a first attempt, not bad.
I use FL Studio pretty frequently...almost everyday. haha
Anyway, listening to this song...I can say, that...you seem to have a some "ok" knowledge of what you're doing. I can see you're using the piano roll for the ummm, glass sound? Anyway, got a nice bass, you might want to EQ that track in the Mixer. But you'll learn all of that in time. Just practice man, I'm sure you'll get it. Good luck. :D