I like the pensive guitar riff at the beginning and the ghostly pads that come in at :20 or so. The drum beat is also pretty catchy, and helps move the song forward despite the large amount of repetition. I was a little confused when the beat cut out suddenly at :55 and then rejoined at 1:12. In fact, this happens several more times throughout the piece with very few other changes to the texture. I would've liked to see you do more with the harmonies here, including giving some more shape to the overarching structure (dynamic contrast, phrasing, etc.) and adding some stronger melodic content. Right now, it sounds a bit like an ambient drone for a videogame or something instead of a stand-alone piece. Still, solid work with the sound design and mixing, and the short outro was a nice touch too. Keep at it, man!