Nagumo's hair in the famous Niikura broccoli image can be somewhat of a problem for certain edits. I noticed that you can actually see the tiniest bit of corner of the entryway just behind her hair, and this actually lines up nicely with the doorway in the background. With these references I have erased Nagumo's hair and filled in the appropriate flooring as Niikura's apartment would actually appear, filled in Niikura's arm, etc. I hope this proves useful to somebody.