Oh that first track, City Streets, is wonderfully befitting of the title. You've managed to capture that urban feel in just the instrumentation alone (love the warbly piano) and the choice of melodies and supporting accompaniment throughout is fantastic. Feel like I could go on forever about this track alone so I'll just say that this is a great intro to the submission.
Desperation at the Space Station is great - I like the lead in this and the gradual crescendo of the strings below growing and growing. The minimal percussion in this is neat - feels like the orchestra is keeping the rhythm and the beats are intermittent and buried enough to add flavor below.
Ghosts of the Railroad took a very unexpected direction from what I expected. Choice of lead instrument here is interesting - I dig it. A departure from the expected soundscape is a great way of immediately changing the tone without even having to write anything for it to do. This has me feeling pensive and a little bit on edge, almost as though you've spotted the threat but they haven't quite spotted you yet - if that makes sense?
All in all this is fantastic, nice variety of styles, instrumentation and moods. Varied work, and all of which is composed to their strengths. Great work, and best of luck!