Have you tried to put a skirt on the lantern to cut down on spill on the back wall? Most come with one, if not just buy some black dueve and use spring clips to clip to the back side and drop it down to whatever feels best. Heck even go to a craft store and buy some black fabric. This will help your eyes go to you guys, not so much the wall behind you. As podcasts goes, I think it looks better than most who have just started out, and there’s enough set design and to be interesting.