Oh, this is a really fun one. It feels really cinematic, with the way simple ideas are expanded on so much through each song. I also really liked how much guitar you used.
The first song felt a little dissonant, which I suppose is the point. It really got the creep factor across. The second one was definitely more harmonic, and made for a nice contrast. I could see it playing over a scene where some big secret or conspiracy involving the alien is revealed.