Ruby Rose was nearly paralyzed doing a stunt, as a result of herniated discs in her neck, and had to undergo emergency surgery and went so far as to post a video of her spinal surgery on Instagram.
Batwoman clearly has black paint around her eyes whenever she wears the cowl. But whenever she takes the cowl off, there's never any paint around her eyes. This happens in several episodes and is common amongst many superhero/comic book shows with masked characters.