I haven't seen a great deal of discussion about the 4 bits of detailed concept art they showed off, so here's a thread for it. What's up with the demon hologram? What are those big chained demon skeletons in Hell? Why do the dudes in the chairs seem to have splayed ribcages like the captive Wraiths in the Well? Why do those wall sconce things in, uh, "heaven" look sort of like they have Samuel Hayden's head?