No matter how many times I see this I can't convince myself that the connection is much more than 'barbarian v. dinosaur'. There's so much more going on in Angie's splash, and it fits so well with her heavily-worked Druillet thing (see also: Manco), and Jim's whole style is almost the opposite of that. I've no doubt that his work was a massive influence on the whole idea of Sláine, I'm just not convinced this image itself is a direct swipe/inspiration.