I love dark

This is a pretty cool song, I really enjoyed listening to it.
The left acoustic guitar makes the song a bit too busy and takes my attention away from the best part (your vocals).
I think I would try something less busy, probably a clean electric guitar that holds chords.
That's the best thing about BIAB, you can just try out ideas.
But as it is now, it's already very good, so don't worry too much about it.