it's very nice. The vocalist was very good and kept me drawn to the song. I thought the use of operatic vocals could be better emphasized if you used a stronger, perhaps thicker texture of accompaniment instead of just the piano but maybe that's what you wanted. Towards the end before the vocalist came back it sounded more like a soundtrack, I was waiting for a pounding climax but it didn't come.
But these are just minor opinions. Overall I enjoyed the piece, I thought it was refreshing to listen to.