I love the fact Ellis decided to show Gallow's reaction to Doom make Avatarr's head all mushie. Everyone else is all O_O at it. Gallows? He relishes in the violence.
Also this is as closest Doom 2099 got to being his 616 younger self with that rant. But again props for Ellis making the most out of Avatarr and giving him quite an exit out of the 2099 verse.