Woah man - you can’t go hating on earphones if they are cheap!!! 
Well I downloaded the mp3 and it sounds much nicer than SC I must say. I loved how the choir and strings + piano worked so well together, and randomly enough those harder panned - this is totally what I heard - strummed white noise hi-hats on both sides of the stereo. whatever they were, it really added a sense of urgency and speed to the piece. I think one of your samples sounds a bit… crackly? I can’t place what it is but it seems to be coming from the bottom left side. Also, from what my limited knowledge my ears have collected, it seems that there is a bit too much middle-bass in the mix. No idea what the professional term is, but it is the series of sounds that on an EQ fall in between the middlemost frequencies and the lowest. I might be totally wrong here but that is just what what I am garnering from this mp3… (on earbuds if you must know 
)
BUT with small specifics aside this was a very beautiful and epic piece - great job!