Sample heavy, but a good start.

The arrangement is pretty okay but, as someone who has sampled extensively some of the bits in Garageband, they stand out pretty strong. I tend to use them as background for short films and animation in conjunction with my own pieces.

You've obviously got the ability to arrange and work with samples pretty well, just weave in some of your own stuff and maybe scale back on all the layers a little. Also you can find a BIG array of copyright free samples online for free that you can work with.