I've really come to enjoy this song the more and more I listen to it. The ambience at the beginning combined with the harpischord melody really blends into the later theme you develop until the drop hits. I especially love how smoothly each section transitions to the next, yet each part feels different.
To me using automation clips for the growls instead of Lfo is one hell of a blessing; especially for the fact that you were trying to make this sound atmospheric and ambient.
To me this is a great song, but there are a few nitpicks and complaints that I have.
At the end of your drop the choir within the background seems to approach a little awkwardly. (it feels late and doesn't seem to have the right attack for the first note)
At 1:32 and 2:46 the snare there doesn't really feel impactful, I suggest adding a moderate amount of reverb in combination with making it sound a little deeper/louder.
Kicks at times also feel weak, though I do think the sound you were going for helped out nicely. It made certain areas of the song have less of a beat to it.
I do really enjoy this song though as it has much more strengths then it does for weaknesses. Ill probably check out some of your other stuff as well soon.
(I need to publish something that is actually decent on my profile lol)