The bass could add a little richness, he's a little too blase about his hummy little part. The arrangement is awfully plain, there's a lot rhythmically going on in the original and the chords in the background don't do enough to carry the song along. The duet is very well done and the solo is pleasant, but the song lacks something. Maybe percussion would add some rhythm. The soloist is expressive and well matched to the song, but could use more energy.
Arrangement is good.
The basses, especially, are scraping the bottom of their range, and it makes for some rather grating notes. It has energy and lots of cool little scatty bits including some lovely overlays at the end. A good arrangement of a difficult song, and overall, it is well done. The soloist strains at times and could use more control, but the background really carries the song. The scat section at the end is impressive.