Not Bad :)
I quite liked this song. Especially the introduction and the way you repeat the main part about 2/3 in.
My only criticism is that you never hold something without changing it for more than 8 beats! It gets a bit silly, because the song doesn't seem to be going anywhere. You have just changed something every 2 bars or so in a hope hope it will eventually lead on to something else. The song doesn't deviate really at all from the theme, and when it does it isn't for long enough.
If you didn't write this piece with such... i suppose a kind of fear that people will get bored if you don't change it quickly, it would be better overall. But that's just my interpretation; I'm probably completely wrong ;)
Techno songs are almost always fairly drawn out, taking ages to change things.
I like this piece the more I listen to it. (Which is a fair bit, seeing how I've had it on loop whilst writing this review)
Thumbs up from me