Downloading worked for me!
There is about 50 seconds of silence at the end of the audio file, which I guess is not on purpose.
The first part felt to me that the piano was bit alone and could've maybe used something more to fill the soundscape (or a fat reverb to make the piano fill more space), but the second part after that was really great, and I mean really great, absolutely loved the vibe it had and wish it had been longer. The slight vibrato on the voice/whistleish sound combined with the piano just gave a really nice "mysterious" feeling to me which I felt fit the traversal through the mysterious factory well.
The parts themselves feel a bit disconnected from each other, but I guess you intended them to be 2 different short tracks.
Good work!