Strong idea here, mostly tied together with the chord progression, which has a really cool sound. I think next step for this track is developing that idea. I think you could elevate the build up of tension by maybe mixing up that last chord every so often, maybe on the 2nd and/or 4th pass it could be something else, like Emajor7 or E7#9, instead of Fm7, or Fm7 is the one that sticks out and the rest of the time it's something more functional like Em7.
The melody has some good development throughout the whole piece but can feel a bit copy paste within the sections and could use a little more care to match the chord sequence (that F over Em7 is rough), or acknowledge them even if it doesn't fit perfectly harmonically. As this is the strongest part it weakens it for me when the rest of the music doesn't reinforce it as much as it could.