I love this album. I actually really enjoy the contrast between Purity Ring's two albums.
Shrines is delicate, precise, and generally quiet. Given the gory lyrical references in a lot of the songs, the album is like the musical equivalent to surgery. Now we have
Another Eternity, the lyrics orbit around space, and the music sounds massive. The synths collide with each other with so much power, as if they were planets themselves. They've done a great job not only on this album, but creating a general sound for themselves despite how different their two releases are.

Awesome duo.
"Sea Castle", "Heartsigh", and either "Flood on the Floor" or "Stranger Than Earth" are my Top 3 so far. I don't know which I prefer between the last two yet.