Favoited and 5'd!
I see why you named it the way you did now that I've been listening lately. Like the other guy said, a pad and synth harmony would greatly improve this. Sounds pretty proffessional/ :D
The introduction was good, though I think you could have introduced a pad after 8 measures or so... that would have made it sound a lot better. You build things up quite nicely... wow, great percussion! =D
It could sound professional, but there's a lack of harmonies... now don't get me wrong, all you really need is a pad and another synth harmony and the song would be complete.
Oh, now I see why you called it Alternating Current... and you introduce more stuff... wow, this is pretty professional-sounding now. You do well with harmonies and have no problem with reptitivity, which is good... and you just introduced another synth. This is pretty good. And you brought the professional-sounding percussion, better than ever, again.
I think your problem is that you had everything you needed, but you were taking things out in the beginning so you had a place to build up to, right? That's a bit amateaurish (no offense ;) ) - a good solution to that would be just to have more harmonies... and use some for one section, and use some for the others. Know what I mean? ;)
So I hope my advice helped you out. :) Why don't you check out my songs sometime? Review a song or two if you have the time, maybe. =P Keep making songs and improving, more like this later on is a good idea. =)
Please contact me if you would like to use this in a project. We can discuss the details.