That's a very nice, jazzy song, guys. This sure isn't what I expected from George, the incarnation of rock.
Gary, the strings could come down a few dB. And to make them sound a little less MIDI, you could try a phaser and/or a tremolo effect on them. Other than that the mix sounds nice. The backup vocals are great.
However, the MIDI sax is a pity. If you ever get a chance to recruit a real saxophone player, you MUST replace that part. I know, easier said than done. I always have the same problem.
But, anyway, good job, people!
Regards,
Steffen