"Eight months ago we began to share ideas and develop a visual style representative of the horrors of Hell. Concepts for each of the rivers were created by Mihai, concepts grounded in Greek Mythology yet open to our own creative interpretation. As the months went by we carefully decided upon the final designs for Acheron, Cocytus, Lethe, Phlegethon, and Styx."
Their goal from the outset was to create something both horrifying and beautiful. They have clearly accomplished that. I just hope another project is already in the works!