Hey, interesting topic! (as it usually is with your meta)

There is one thing about (over)use of eyes in fiction: I've often read and heard that it's a sure tell that the writer is female. For a long time I thought that it's just because most of online fandom people and roleplayers are female, but then I noticed abysmally overused flashing-stormy-darkening-with-hate-or-anger eyes on chechen terrorists and gangsters (with otherwise extremely closed-off body language) in Yuliya Latynina's thrillers (she's a renowned journalist and, obviously, female). After that I started to look out for eyes in professional fiction and never found any in books written by males. I have no statistics on the subject, but it does seem that showing specific emotion (or any emotion, really) though eyes is a female concept.