Interesting chords in the beginning... starting off with im7 and VIM7M9 was a bold choice, and I think it came out pretty well. The chord after THAT though, was harsh... IIIP11. The resolution note you put after it, the tonic A-flat, was not a correct resolution and doesn't have that same emotional impact I think you were going for. Simply having the melody line on the third would have been better.
The impressionistic section after was incredibly interesting especially with the pedal D, which I commend you on not making it sound too out of place... just dissonant enough! The choral section following was phrased really strangely, and kind of brought out the worst of the original section. When the two were blended together then two chord you threw in used the 11th again which is awkward when paired with the major third. General rule for you. A lot of this piece continued in a similar matter.
The slower section after, reusing the pedal D was again, dissonant, but in a really great way. Making use of the tritone chords or open fourth chords was an interesting choice to end the piece. Glad to hear an ending this time too! :)