I like this mix. It's mellow and easy on the ears. The one thing I don't like is the reverb on the horns/sax goes on a bit long and sounds more like they're playing in sewer pipe than in a concert hall Other than that, good job!
I think "sewer pipe" might be a bit strong of a description of your environment, but in this case I might agree less is more. I like the environment you created but I think it could be less dominant. You begin to lose the definition of the ensemble. Some of this may be a result of the playback level this was mixed at. overall though, a very enjoyable mix.