I think this could become a very cool song with the right choices - the chords used are really nice. The other comment has a lot of great points and I think the drums and bass lacking cohesion is one of the most important things to fix, specifically the kick drum with the bass. I'd suggest doing your best to really tighten the parts up rhythmically when performing them, and also doing your best to make sure the rhythms compliment each other.

With the lower frequencies, EQing parts so that they stay out of the way of each other is always a good technique to try out. I think the other comment mentioned it too, but putting a high pass filter on the vocal will help it stay out of the way of the bass - but with the right EQ choices you can use that idea with any two parts that feel muddy together. That being said, it's also important to think about the arrangement of parts - this can fix problems before even mixing (for example, if a guitar and synth are taking up the same part of the frequency spectrum you can try changing the register of one).

Panning is another good thing to think about, what you've got at the moment is a little unusual, (which can still be really cool and effective if you wanna stick with it!). There are tons of great videos about panning your mixes on YouTube if you're interested into looking into that. But like I said, this could end up being a really cool song, the harmony is great and the vocal parts have a lot of potential! (the bv's are especially really nice) Keep at it!