Not bad for 18 years old!
I don't believe that you wrote this for Cubase! I mean it is a different thing to write for a concert with live orchestra and for computer ( nonlive music ). Well if I compare you with the composers that they are in this site I give 10. If I compare you with the cinematic composers I give you 7. If I compare you with the students composers that they are studying composition around the world I will give you 3. If I compare you with the greatest composers of all time I will give you 0. So the average score is 5! I suggest you to hear more modern composers ( if you like ) like Stravinsky, Bartok, Ligety, Xenakis