Reply to Looking for Feedback on a DnB Mashup

Hey, so I'm looking for some feedback on this mashup I made, it's the first time that I've actually tried doing some mastering, albiet in Garageband lol.
It's Hive & Keaton's Bring It On with Audio's Warehouse VIP.
Also another note since I have it as not downloadable the widget plays it as 128kbps I believe

Thanks in advance and enjoy.

http://soundcloud.com/citizen_insane/bring-the-warehouse-short