Please bear in mind I am a beginner not a mixing pro. But anyway, this seems like a simple and reasonably balanced mix to me. I wonder if the rhythm guitar part could be improved by making it feel more integrated in the mix: try turning it down slightly? Or could you try using a short blending reverb? I think the guitar is very slightly out of tune at times, which can be distracting and might be adding to this. Did you use any compression on your master buss? I’ve heard that this can make a mix sound more ‘glued together’ so this could be worth a try. You could also experiment with a very, very quiet synth pad in the background?
Please bear in mind I am a beginner not a mixing pro. But anyway, this seems like a simple and reasonably balanced mix to me. I wonder if the rhythm guitar part could be improved by making it feel more integrated in the mix: try turning it down slightly? Or could you try using a short blending reverb? I think the guitar is very slightly out of tune at times, which can be distracting and might be adding to this. Did you use any compression on your master buss? I’ve heard that this can make a mix sound more ‘glued together’ so this could be worth a try. You could also experiment with a very, very quiet synth pad in the background?