Good job ... nice blend of styles ... part of the middle change hearkens back to "Court of the Crimson King" in sound.
In the answering vocal part -- the right is louder than the left ... and overpowers ... most of it is in the tone/eq vs level -- the right vocal has more energy in the sensitive vocal freq ranges -- and so pokes through a bit more. Instead of changing the right, I'd dial in a more aggressive tone on the lead vocal ... not a lot, just enough. It should stand out just a little more -- and comes across slightly unnaturally muffled ... like listening w/ cotton balls in your ears.
Which lends the whole mix an impression of "soft" ...
Adding a little bite to the vocal will pop it a little more, and somewhat counter the cotton ball effect.
Really nice performances here, just excellent.
Best,
Kev-