Hi Mat ...
Since retiring from my mainstay electronics employment, I have finally had the time to sit and do some composing ... mainly notating some improvisations that I have played for a few years in church. So, composing wise, I am a beginner, of sorts, except that being a church organist for 48 years, I am not a beginning musician.
E flat minor ... I just hummed that to myself after seeing this from you ... interesting, and it does work equally as well. I will be anxious to see your harmony version.
I think that the 9th interval in measure 5 needs to be lowered one octave just for "flow" of the piece - what would you think of that?