Not bad
I think your synths had some good power, but it was not a perfect transcription from the original, you had a few notes out of place, but it was good for the most part.
I would have tried to vary it up some more, and the ending was a little weird, it needs to be switched up just a little more. Maybe having a different synth or two playing the different parts of the main theme, to keep it interesting.
Your synths had more power than my remix did, but I think you could vary it up a little more. . .
If you would be so kind as to let me know what you think of my remix I'd appreciate it! http://www.newgrounds.com/audio/liste n/411123
Good work overall!
Omega