I suspect that with practice Thompson has some potential. Getting used to the medium, to storytelling, and to a variety of artistic materials will at least improve his work. If this is the road he's headed down, I doubt if it's possible to improve. As I said, Hunter seems to have some rudimentary storytelling skill. But with writers, it's often a question of where they'll apply what skills they have.
Some roads are dead ends.
Champions of Hell is a very dead one, indeed.