Nice work
This is definitely one of those conclusion songs, that you'd see at the end of a TV series on the last episode. I like the strings, the overall feel. But there doesn't seem to be much of a defined melody. I heard it in the piano before, but now it's gone into a solo a bit.
One suggestion I have is to try layering this song. It starts about a bit heavy right away. you could add each part as you go, as it tends to lend itself to be one of those looped and layered pieces.