Fantastic production. Very professional. Very fine and delicate. Love the spaciousness of the song.
Percussion is used very tastefully.
Effects also sound great. Give a lovely dynamic to the soundscape.
And I love the intricate, dark melodies. I'm hearing a hint of Brian Tyler influence here, maybe?
The only thing I could constructively criticize is how the distorted guitars sit in the mix.
They're good enough, don't get me wrong, but the rest of the song is pretty impeccable, so they stand out a bit.
What I'd change about them? Slightly lower the treble, cut down on the low-mids a bit and slightly boost the deep lows. Not your typical rock guitar advice, but I think it would work better with the context.
Take these specific guidelines with a bunch of salt. but basically what I'm trying to say is that they're a bit too harsh, considering how particularly smooth the rest of the production is.
(But to clarify: The harshness of the tone itself is great and I like how it sounds production wise, the highs in the EQ are the only thing I'm nitpicking; and this is indeed a nitpick)
But everything else is great. The composition expresses very atmospheric, mysterious, contemplative, dark vibes. Love that. A lot.
Mind revealing what you used for percussion? I love the textures on these hits.