It's a cool song! nice and laid back.
Well, for me, the thing that is holding you back here (a little) is the tone on the bass. You might take off the chorus, and even what sounds like a fretless emulation? I think a conventional p-bass type deal might authentically drive the thing more.
I like the theme to "Northern Exposure" and it has this same kind of loopy reggae feel, but reggae and 90's fretless bass is a pretty dated sound these days. And that's coming from a geezer.
But, what the hey, bass tone is part of your vision here and we all make those choices, so pretty much, nevermind! The most important thing is the vocal, and you have a good one here.
cheers,
-Tom