This song doesn't have the rating it deserves.
It should be under ambient, not classical, first of all. It's not really classical sounding. Plus it's ambient. Hence ambient. Infractions. Very nice infractions.
The middle to endish part was the best. It reminded me a lot of Alice (The Hatsune Miku song)
http://www.youtube.com/watch?v=x89FJT zqEAU
It has a lot of elements that it sounds like you are trying to reach. Learn from it. u.u
The reason I'm showing this to you, is that it's very structured. Like Swiz said, You don't seem quite to know what you want to achieve with this.
I appreciate the track as ambient, but if you want to get somewhere with it, you need more of a solid approach. Try to know what you want the melody to be before you start putting notes in. If you can make it in you head, then all you need is the skill (If you want to play it on keyboard) or the theoretical knowledge (If you want to sequence the notes)
I'd be willing to help you as well if you have any questions at all, because it sounds promising at the least.
I'd also appreciate if you'd give my most recent upload a listen. n.n