I love the melody that starts out the piece; even though it's only 8 notes, it manages to convey an interesting mood, which is impressive. Even more than that, I love the complementary line that comes in on top of that at 11 seconds, because of how it subtly but erratically wavers in and out of tune. It feels like it's struggling to hold itself together.
I thought the guitar part at 0:36 didn't really fit in with the rest of the piece--since a lot of it was based on very pure tones (or at least the parts that appealed to me), the very fuzzy, distorted guitar seemed to clash with that. However, I really liked the guitar line that comes in first at 1:28, because it reinforces the tone of the piece--it sounds a bit harmonically out of place, but that's not a bad thing in this case!
The wildly sliding high-pitched background at 0:53 was another one of my favorite parts--it's not the kind of thing that jumps out and grabs your attention, but it's a really effective foundation to build on. I also liked the halting drum pattern that backed up the piece, particularly when it was juxtaposed with the subdued bits at the beginning.
In general, I like how you created a very cohesive atmosphere by including a lot of pitch bending alongside unusual melodies. I'm not sure I really feel the "abandoned city" part of this piece, but you've got the "tentative grasp on reality" aspect down.
If you were to develop this further (and I think it could be developed into a more complex structure) I would suggest that you either replace the heavily fuzzed guitar with a different tone, or back it up with more atmosphere, to prevent it from sticking out as severely. If you extended it, I think it would also benefit from a more diverse collection drum sounds and patterns (as it is, it works pretty well.) But I think you have a lot of good ideas and solid, moody production here. Nice work.