Marcus: yeah, dubstep is pretty much all I want to listen to.
yes of course dubstep sounds like jungle, well techstep really, but to me, it's /very/ techno. Only blacker and better.
Fatal Blow: getting somewhere. Piano figure works well. Structure of the track works not so well -- not clear how it's progressing. That high pitched synth wash gets on your tits after a while. Crying out for a huge growly LFOed bassline under it. Couldn't imagine MCing working too well on it.
Mind you -- it would fit right into the stuff on Forensics Dubstep mix 12, which I didn't like as much as your previous ones, bit too sparse and art-music-y, so who knows.
Antodote: beat is good. the string chord progression is good, the long attack envelope on the strings is less good. Reminds me too much of an 80s synth demo. When the strings dop out it all works much better. Bass isn't loud enough -- not really audible actually.
Wasteground: good. best bass so far, which cOuld be filtered down even more. Bit too sparse. Crying out for some Loefash style twisted pads.
Combine the bass from Wasteground with the beat from antidote and you might have a winner.
Quite good but needs a bit more of a spark...