Wonderful work, David.
The lyrics and voices are great and the sax is a good addition.

A bridge is just to create contrast to what comes before and after but I expect you already know that.
I use usually it if I need to separate two similar parts, i.e. the last two choruses.
I'm not sure you need it here as the last chorus is lyrically different but it may work better if you silence one or two of the instruments in it to create variance.

Vic