Hmmmmmmmmmmmm. It's pretty good, I guess.
However, I have criticism, which you will hopefully appreciate?

Firstly, the whole piece kinda suffers from low-quality samples, but I guess that's not really your fault.

It starts out pretty flat-sounding. The sudden, thunder-like echoing sounds that interrupt it have a lot more... volume, so to speak. Unfortunately, they are too short to really influence the whole feel of the music. In the end, it gets better as you use more directions... ( sorry, I really don't know any of the specific terms of music, so I have a hard time explaining this )

Overall, you stray very little from the original. There is at least one part somewhere in the middle where you actually change the melody into something completely different. You should be creative with remixes. In the beginning I really thought you had just ripped off a Medivo remix I'd heard before, until it started sounding different.
It was really predictable at many points. You often use the means of repeating chords and playing them up and down, which works for background songs, but quickly becomes repetitive in normal songs.
One thing you should try doing is to listen to a part of your song and then keep trying to, without thinking about the original, try to come up with a way to continue the song. I'm not sure whether that's a skill you can learn or something that comes naturally for some people or only if you've listened to a lot of music in your life, but just try it. As it is, it seems that you just took the original and... well, literally remixed it. You should show some more of your own creativity.

There are some good parts in it, but the whole piece sounds rather random, like one part near the beginning when an instrument came from the left and was never heard of again afterwards. I wondered why it came from the left. Something like that could've been used to draw the listeners attention to something or give them the feeling that something's approaching or something like it, but you didn't really seem to pick it up again.

Soooooo.

I think there's some potential in you. Try showing some more of your own creativity!