i didn't think highly of this untill about 0:42 when the melody really started, but the original must have been similar to this one. the first game that came to my mind where this song could be used as well would be in a final fantasy game, probably IX but VIII would work almost as well

I love the heroic feel all through the piece and how you combined orchestra with electronic sounds. The whole piece overall sounds like it would fit perfectly in a Metroid game. The arrangement you made is great and your instrumentation is near perfection.
La unica queja que tendría es que hay mucho sucediendo en el centro. Todo esta muy claro pero si hace falta que distribuyas un poco mas los instrumentos y hacer que se escuche mas amplio el mix.
De ahi en fuera, te felicito por tu esfuerzo! Has de haber pasado horas y horas frente a la compu para poder sacar algo de esta magnitud.

Pues para mi si es tu obra maestra!
Sigue con tan excelente trabajo!

Nadie puede negar que pusiste un gran esfuerzo en esta melodía.
Mis más sinceras felicitaciones para tí mi amigo.
Cada vez te superas más y más :D

Awesome composition, dude!
I love it! However, I can easily tell that the instruments are digital and not real instruments or even original samples, but that doesn't mean it's a bad thing, it just means I've listened to many synthesized orchestras in my lifetime, being a 80s rock and video game music fan, because the instrumentation does suit the Metroid series pretty well, in my opinion.
That said, some of the percussion (snare and cymbals) and brass in the intro seem to be a bit more... scratchy and synthesized, almost metallic and unnatural than some of the other instruments. Other than that, really good job on getting it to sound as close as a authentic orchestra as possible.