Dark ambient is the obvious label for his efforts, although Vestigial should be credited for taking a subtler and more thoughtful approach than other bands in the genre. Proper drumming is almost completely absent from the album, surfacing only at the end of "Primordial Communication", and the sampled vocals present are unintelligible mumbles used as sounds rather than the customary philosophical statements. For Peppe's thoughts then, you need to look at the track titles, where the names of the starter "Anthropic Uncreation" and the last track "Anthropic Resonance" seems to carry ill omens about future human existence in this universe.
"Translucent Communion" invites grand natural imagery to describe the sound: tectonic upheavals, magma boiling at the center of the earth, icy Siberian wastelands; you know the drill. But grand as it is, Vestigial does not add much to the larger context of ambient music. It is less theatrical than its gothic-minded brethren, evoking a meditative state rather than angst or a feeling esoteric mysticism. Enticing as it is, I have heard too many artists doing the same and some of them doing it much better, to really get excited about it.