The shading on the B&W's is more subtle which brings out the features more. This is why the Monster looks so good. I've seen it on a few other figures and they look just as good. Trevor Grove has always done good sculpts, it's only now that the 'paint' has really done it justice.
I would too. It would seem though that they're not having to adhere to that awful colour chart that other license holders, including Sideshow, were made to follow. The colours are totally wrong, especially when you see the original costumes.