Not a shadow, its the dark force that envelops the demon creatures traveling at high speeds to his aid if he needs it. You see it in a lot of Silvestri's splash pages but most are standing still with just the eyes peering out from the darkness. I wanted to make it look like they were traveling at high speed.
Hey man thanks, I know you saw the first, this is the third but did you catch the second with The Darkness facing off with the Dragon? This is the actual action one but the one before was the stare-down. :P
I know you are a fan of Silvestri but wasnt sure you caught my other one.