Sometimes the key to good building (ok, sorry for the pun) is to mess with people's minds, or at least scale. At first it's impossible to tell how big this MOC by Legopard is, or that it's even a MOC really. But it is indeed brick-built and perfectly crafted. And once you study the picture for a bit, you realize just how big this thing is. I'd hate to see the door it opens.
This photo is a bit over processed for my taste, but the build is awesome. This is the Demonic Key by mihaimariusmihu, and who knows what nightmares it opens. I love the use of the chains to add texture, and the Ninjago spinner as an eye is inspired.