Finished the first couple of them.
I liked the techno tracks; not necessarily my style, but enjoyable. I liked that they constantly kept things mixed up; it's something I wish I was better at with my own music (I tend to fall into "safe" patterns.)
The punk rock piece has a lot of merit, as well, though my ear kept anticipating the bass and guitar coming together (like, say, around the 2:00 mark) and it never happened. It could stand to build a bit more, but the song has a great underlying "drive." I especially liked the bass guitar's flourish around 1:02.
Oh, and a question: are you using modified sound loops for your techno tracks, active synthesizers, or both? I thought I caught a hint of the VST plug "Ravity" in your first piece, but could be mistaken. The punk song sounds like a live recording. Did you have an accomplice or did you sequence it?