I like this. Excellent groove. For me the voice is a little far an too dark (eq?), but it´s only an opinion. The sax is perfect on this.

Very creative use of the various sounds.

I agree that the vox needs more presence in the mix. Not so much in volume but in the EQing to make it reach out a little more. An old trick is to copy the vox track and hard pan each one left and right with a slight variation on the EQing between them. Needs a bit of experimenting to fit in the mix but can be quite effective.