Awesome to hear your approach to sound design experimentation. Viroth sets the stage for the haunting atmosphere of Nexopolis. I hear unseen, ancient lifeforms lamenting over me trespassing into their world. Cy'Pherion really shines here. You know how to create a memorable, striking melody and use it to great effect. I was expecting to hear the melody loud and prominent during the crescendo, but you restrained, and gave it to us at the end of the song. Such a classy choice.
Mixing is incredible. The contrast between your tracks makes for a very memorable journey.