Yup, this is a rehash of what's been said before, but the sample quality is terrible. It's not only the samples, though, it's also the mixing involved. The mix is far too quiet, at the moment.
I use Reason, by the way, but I've found that I can make some pretty decent songs with those that came with the box. At first, I didn't invest into VSTs (even free ones) simply because I was a noob, but now I'm holding off because I want to get all of the other aspects of mixing and mastering down first so when I do get them I'll be unstoppable
The point of this rant? If you can't get better samples then micro-adjust the samples you've got by tweaking the attack/release knobs, or adding reverb to them, delay, compression, etc. Working with bad samples is difficult, but it is possible to make them sound better than what they are.
By the way, I liked the arrangement itself. There were parts that sounded like rips, for sure, but there were also some very creative sections.