Cockatrice looks amazing.
Black Dragon looks a bit... odd. I think just because Games Workshop does very serpentine dragons, often curled into an S shape and its a bit uncurled. Ill have to decide when i see it in person. I think its phenomenally tall as well.
Manticore looks great above the waist. Not too sure about the legs, but thats nothing that cant be fixed with a bit of repositioning and a big rock to stand on on the base.
The Chimera is hideous. It looks like a really nice, different dragon sculpt with two pretty cool heads shoved on it. But it dosn't work altogether. Which i guess is the point of the creature. I would quite like o see a one-headed chimera. That model could be really nice. Or, maybe it will look like Pete's dragon?
Also, is that a new DE assassin?
And does the eternity stair fit inside witchfate Tor?