This is an article about how female MCs were first introduced. It's movies but I think there's something to consider for novels too. https://www.vulture.com/2018/04/how-50-female-characters-were-described-in-their-screenplays.html Here's the Sarah Connor (Terminator) one: SARAH CONNOR is 19, small and delicate-featured. Pretty in a flawed, accessible way. She doesn’t stop the party when she walks in, but you’d like to get to know her. Her vulnerable quality masks a strength even she doesn’t know exists.