Let me see.
Well, I can't remember everything about the original, so I'm not sure if you made anything up or just stuck to the original. Nice start, though. This is the second time all month I've heard FL Keys and it didn't bug the heck out of me, but I'd recommend using different piano samples anyway. Soundfonts, maybe?
Otherwise, I think you could turn the bass down and fix some clipping issues (think those are coming from the piano...) Drums are fine, nice job there. Are you planning on finishing this, or are you going to leave it as the intro alone? I'd recommend making it longer, but that's up to you. Otherwise, keep up the nice work!
-Lamp