Overall nice tune... good work. I don't know the original though, would have to listen to that to be a true judge.
Couple minor things you might want to get another opinion on
The bass rhythm seems a bit, maybe overly frantic in places. Like, sped up too much? I might take a couple of the faster notes out if it were me, could be just me though.
Also from where I'm listening the vocal is a bit too far back in the mix, especially in the intro. Take that as you will, it could be my headphones/ tablet, which aren't the best