Ha, alright. Wasn't really going for the "completely and utterly soul crushing" sound there, but consider it noted.
I wouldn't quite use those terms, but the very harsh sounds that you use for the first two main motifs do indeed make the listener feel ill-at-ease. The bit in the middle is the main contributor, its brutal emphasis on aharmonic chords being in stark contrast to the rest of the track that's relatively laid-back. This could, of course, be intentional, and that's fine.
As it is currently, the track feels a bit disjointed - there's little connecting each major motif to the next, and no real overarching melody or harmonic line. Only a bit though - a little more emphasis on a bass line, or some accompanying chords would allow one motif to easily flow into the next.
I'm not really certain what you're trying to show with the augmented second intervals that show up in the first major motif, the one that gives that "arabic feel," as mentioned upthread. If you're trying to emulate sounds possibly heard from an erhu, bear in mind that it's a bowed instrument, thus the sounds it makes will be long and legato. To be fair, it's easily plucked as well, but the majority of the notes would be bowed.
For reference, in case anyone cares, the "arabic" feel is present due to the plucked quality of the notes combined with augmented second intervals. This interval is easily-associated with middle- and far-eastern music, and the plucking quality sets the music firmly in the former category, due to the prevalence of plucked, not bowed, string instruments in the middle east - India, Iran etc.
I hope these comments are helpful.