If you truly are 15 years old, and English is a second language to you, you have my respect for animating such an ambitious "music video"(tag). It's easy to put an animation over a song like this. Maybe too easy - if you could sync the music to the action, that would show pure talent.
The work you've put into this shows. The fight sequence seemed to flow properly (logically), though it was a bit slow (that's a long song!) As great as it is, it could never be considered for movie of the month because of it's commercial soundtrack - next time, pick something from the audio portal, here at NG or at least, list the song(s) in the webpage credits (done during the submit process).
Thanks for posting your work here! You have a definite knack for animation and I wish you well :3