Wow biddy you didnt lie. I literally thought the first picture was of my head LOL. Imo your hairline looks more stabile than mine. I dont know if its because im thinning, or if i have very fine hair/low density or because of my scull shape. Like I said the peaks itself doesnt bother me at all, whats bothering me is the lighter areas around the peaks. Maybe its thinning...but where i have the lighter areas i also notice it goes in a lane to the back of my head similar to urs in the first pick. so either its thinning or the hair is parting, making it look thinner. But under light It looks worrying..under no light it looks ok.
When I have a hair and my hairstyle it looks stabile..a stabiel nw2..its only when i get a buzz cut I get little worried. I dont know my family tree so well since we live in different coutnries, but the only bald person I can think of is my fathers brother...but he passed away at 74 or something. And his son who is 40+ (a bit older than me) seems to have a better harline than me.