User blog comment:ChishioKunrin/Qrow and Raven's symbols/@comment-26397825-20151116080902/@comment-25396609-20151116184122

I used the semi identical male/female twins thing for two of my characters

And I gave them mirrored symbols...

Hm...

If Qrow and Raven are twins it provides some legitimacy to me doing that.

Also, I never noticed the eye thing until now.