mhhh... i dont like nor dislike the sound (so no vote).. sounds a bit like a 8 bit and 4channel protracker tune... i think you should work on the guitar sample and later you should rework the guitar play ( > 0:30) a little bit.. else the rhythm isnt bad...
I actually used Slayer 2, it can be purchased from reFX as a VST plugin, it's slightly more powerful than the FL Slayer. And when you visit reFX's site, be sure to look for Vanguard, one of the very best VST plugins around.