I definitely like the second track of the first two you posted better, but that's probably just because I'm a bit more into the melodic nature of the song a little more. It definitely sounds like something that would be fantastic to get high to. What sort of feeling or emotion were you going for with these? The first track definitely has a kind of a tense and abrasive sound to it, but still manages to work as a sort of "soundtrack" as it were, whereas the second track is a bit more attention grabbing. One thing that I could say about both of them is to increase the dynamics of the song, as they both felt kind of long to me.