i can picture the intro as the music for a final boss scene in some new kickass game, nice work
Could... i mean... ARRRGGGHHHH!!!
It's difficult to say, because i'm not entirely sure what you were going for. So this will simply be my general opinion on how i would change the song...
The drums could be a little lower pitch. Same with the main synth sound... As you replicated the entire song, it is difficult to make any significant changes to the instruments and make it sound good as another genre...
You did a really good job replicating the song and the instument choice was good anyway so thats 8/10 and 4/5.
i like what you did with the song. gave it a nice new and complete feel. however i dont think ttfatf was really meant to sound like this. its a bit too light. on the other hand i like hard rock so it might be just me. overall its a well done cover.
Please contact me if you would like to use this in a project. We can discuss the details.