I sense a heavy influence from WaterFlame here...and that's epic!
The piece isn't all over the place, and that's always a good thing. I love the atmosphere this piece brings, and the generalized melody really feels like something outta metroid to be honest...I could imagine this piece taking over Trova Clockwork...I mean, just think about it for a second...
I do have a piece of advice for you...with the ending, shave off the last 3 seconds and do a Tie-In to make it loop. With this kind of piece, a loop would suit the mood very well...and if you don't believe me, re-edit the piece to drop a loop and you'll see exactly what I am talking about.
4 out of 5 for all around epicness! Half a star for taking one of newground's greatest artists style and pushing out this glorious piece! Minus half a star cause of the length... tsk tsk tsk
Keep it up! Can't wait to see what else you come up with!