Not bad, fell a bit on the instruments though.
As Lacrioso has already done a superb job of advising you ill give you a few pointers for the future. If you can get a program that does good orchestrals, get it, fast. The main instrument was very good and clear but everything else was muddy and horrible sounding. if you use an orchestral backing make it similar to the main theme and in this case you would have wanted to make the strings create an immense and epic feeling of longing, using building chords and slow tempo, a long drawn out note getting louder would have been perfect.
Also weave the main instrument or tune in and out of the orchestral backing, a bit like weaving a basket if you get my meaning.
Next time put an orchestral backing or add at least 4 other intruments into it for more depth, if the flute or whatever it was had more strength at certain points (built up to a louder tone) and you made it have 'peaks' in sound whereby you held the note it would have strengthened the feeling wuite a bit.
All in all the tune was great but would have benefitted from a stronger feeling and more instruments. Keep up the good work your doing well, i can see a lot of talent for the future and look forward to hearing more of your songs.