Hi, having no inside knowledge of working on an illustration I did ask a few professionals on a site about U.K. covers having more artwork on them like ASM 96. A few reply’s but generally the consensus was they would of had illustrators add on . Kurt Busiek and others remarking that Kane Wouldnt have done the brickwork in the different style above the cops head . (Another reply) British weeklies reprinted half a comic book's worth of stories, which required twice the number of covers per American issue. Hence they had a crew who drew covers (sometimes from scratch, other times from splash panels or specific panels in the issue). They also did tweaking on those covers they used so that they would fit to the slightly different format. Which is the case here. The awkward blank area between the cop's legs is not something Kane would have left as such.