I'm all about constructive criticism, so if you don't mind getting some, here goes: This piece needs a somewhat more compelling main theme. You're basically in the key of Db minor, and you land on E quite a bit...possibly too frequently, esp. at the end of a phrase. It's the part where you play E four times in a row...could have done something more adventurous with that one.
Your orchestration, mixing, choice of instruments, percussion, and progression are all FANTASTIC. I love the string "flourish" at 1:26, and after that you've got a really nice higher synth sound that comes in the background, but again, you could have taken it other places to make it a little bit more interesting. As a serious musician I'd like to see you become a little bit more radical and crazy in your themes. I'm assuming you're using a midi keyboard with FL studio? It's hard to be experimental if you're just entering notes on the computer keys.