Not bad, not bad at all.
Lemme get this straight, you have plans for this to eventually be an OCRemix?....I have a few suggestions then.
First, the easiest thing to add on at this point would be some rather dramatic sounding drums....snare rolls with an Orchestra set would probably work well if done at the right intervals, as long as it has the same amount of reverb/ambience that the main strings and piano have.
Other than that, it might be a good idea to look for inspiration on how you could essentially "riff" of the main melody...you know, make your own solos, or something.
...no, I don't mean with an electric guitar!
