Nice groove
On the top of the "morning light" high note it sounded like you ran out of air. If singing is anything like saxophone, push through it! Then again, as a sax player, I def. can't sing that well in the first place -.-""
I really liked this groove and use of effect. Nice choice of violin, fits the sound really well.
As far as performance, nothing much sylistically. It might just be the recording, but I'd bring out beats 2 and 4 on guitar accents and on snare a little more, might help it lay back a bit more. Just a little bit, it sounds like it loses energy when you're going quiet again. Around 1:10 in the music the bass is coming through a bit too sharp, you might want to try and dampen/soften it a little bit more if you can.
If you want to add a little jazz in there, when the bass plays on the offbeats you can try and mimic the feel in the drums. I don't know if that will sound better or not, just something to try.
Again, just trying to be helpful, I did like it a lot. Definatey some talent.