Chamber of Darkness #4, page 13

As you can see from the original page, Marvel changed the entire story and and had Jack redraw entire panels. The reasons are unknown. The original story looks gorgeous. In addition to the total revamp of the story, Marvel edited this page by pasting a redrawn head over one of Jack's figures. DC did the same thing by having Al Plastino and/or Murphy Anderson redraw the Superman and Jimmy Olsen heads when Jack took over Jimmy Olsen and started his Fourth World epic.