I listened to this several times. Whoever wrote the tune should be proud. It's very good, albeit short.
Whoever the vocalist is deserves a big ol' sloppy kiss. She's great.
The violin is great. Very nicely done. Fits well.
The guitar player should take a break. Go take a piss, have a beer or pet the cat or something. Maybe bring in a sax or keyboardist instead. I don't know. Somehow, the guitar is just wrong. It's jarring. Maybe just re-amp it or change the distortion? I don't know. I think if it was me, I'd get rid of the guitar altogether except for some emphasis here and there.
Yeah, I know you're the guitar player, so please don't take offense, but for as big a fan as I am of the instrument, not all tunes need it. I think this is one of them. Or, it needs to change emphasis or presence. Look at some of Elton John's work. The guitar comes and goes as necessary, kinda like an orchesta.