I liked the oboe or whatever that was about 1 minute in. It made for a nice ending.
You have some fairly good ideas in here. The biggest thing I would suggest is to change the pitches of some of those fast notes when you have a different long note playing in the bass rather than keeping them exactly the same throughout the whole piece. That would avoid the dissonances, create more logical harmonic progressions and would sound nicer (to my ears anyway).