Hi
sounding really good. It has a wonderfully different feel to so much of what you here these days. There's something of a "period" feel to it (not sure what period, maybe 1920's France) which is lovely.
I think the oohs coming in as they do at the end is a bit of an abrupt change of feel for the ending. But maybe, bringing them in earlier on behind a verse (perhaps if you go with the dropping the piano for a bit idea, then at that point), would make them integrate more with the overall feel. I also think an accordion coming in somewhere round the middle (perhaps where the tempo changes) would be interesting (probably reflecting my France 1920's view, so might not be what you are after!)
The piano playing is lovely!
cheers
Dave