The rhythm at the beginning is a little bizarre - it's almost square, but not quite. When the beat comes in at around :30, it makes a little more sense. I think you overused the reverb on that instrument that plays for the first 30 seconds, though. I'm pretty sure the instrument that comes in at :41 is a preset from Plucked. The whole piece is pretty dissonant, which isn't necessarily a problem, but I think you needed some stronger melodic content in there. The simple riff at 1:31 isn't enough to satisfy my melodic desires for an entire piece. The samples you used are cool. This could turn into a really cool ambient track, but I think it just needs to be fleshed out more. I also thought you could've done a lot more with the drums. There's a lot of potential here. Keep at it, man. ;)