Yeah, that nose! I've brought this issue up myself in the past; I did consider reinventing Mar and Proctor with more realistic proportions, since I have been moving to a more realistic style overall, but I think that might be pretty confusing. Besides which, even their personalities are somewhat cartoonish.
So I think what I'm going to do instead is just let the story work through them and move on, as it has with Vero, whose bald and relatively featureless design also began to be a problem under the more realistic style. We're done with Vero now, and Mar and Proctor will figure heavily in episode 11, because I've still got something to take care of with Mar's little project, but that will be pretty much wrapped up by the end of the episode, after which there shouldn't be a pressing need to revisit them--after all, there are many other corporations and groups and characters in the A* world that I want to get to.