I feel like a little more could have been done with game play. Maybe a pinch of combat, or a little more involving puzzles other than "get this go here". Music was amazing, it set the mood very well alongside the visuals.
One final note:
This is practically begging for a sequel. Who is Ruby? Why cause the villagers to abandon her? Is this what happens when any pony grows up without a Cutie Mark?
Too much is being left unanswered, which is the beauty of this game. Leave it as a stand alone game, it's fine as it is. If you do decide to make a sequel, tread lightly as sequels have a tendency to either suck or be awesome.

Not bad.

I know you said all that needed was the main melody, but I personally feel the part you left out helps transition the song a little. Instead it feels like you're dragging the same idea over and over and over again.
However, beautiful work of using the volume and intensity to your advantage. This song is best preformed quiet, then intense, then quiet, and you seem to have that down. Sent a chill down my spine.
Just because the part I like isn't in it doesn't mean I'll give you a bad score. Good job on this one, I look forward to hearing some more of your stuff. 4/5 7/10

This sounds exactly like the FFXI Battle theme.

Seriously, I'm hearing no difference in instruments played to melodic rearrangements of this song. Unoriginal, not even a remix or transposition. 0/10.

Plagarism is obvious.

Pathetic. This is bliNd's remix of "People of the north Pole". It's sad that you are claiming his work as your own. You are pathetic.