Am I hearing the same track or has this been changed out to a different version? I hear only guitar and vocal- guitar being more to the right side. Since you asked, there's nothing wrong with guitar and vocal only, at all. But I would have treated it all differently. First rule of thumb- simplify.

"vocal verse is deesser, eq, compressor reverb
vocal chorus is deesser, eq compressor reverb and then a delay
I grouped the vocals together and then put a compressor on the vocals as a whole.

The guitar I used a preset electric guitar eq, and then used a hi and low pass filter, and then panned the bass to the left and the treble to the right.
I grouped the guitars as a whole and then added an electric guitar chain of effects from my software."

No need for any of that. Start again. Use only eq on the voice and guitar. Avoid panning the guitar too far to one side. Do not brighten the guitar too much because the contrasting vocal seems too muddy. You have the entire eq spectrum open to you with only guitar and vocal. No need for extremes. Then on the master buss, put a nice subtle verb and a limiter on it for some more volume if it's too low. Simple.

I like this. It just needs more help by not helping so much. But really, if you do nothing, it's still very nice and effective as a song.

Dan