Well Robin, mate,
I like it very very much! I do enjoy especially Sienna's take into things.
The whole thing is just excellent to what it is. Certainly, as Gardener says, impros get lost in a recording, but still the recording is an evidence to what all of us, listening to the mp3, missed! You just seem to communicate so well! (and the drummer seems great to what he does)
Score is great as well!
All the above with the reluctance of someone who doesn't know much about jazz, or listens to jazz at all...