Could you explaim to me this thing that i've noticed about sexual dimorphism please i'm confused .

Hi, I'm not an anthropologist, I'm just curious about the so-called feminine and masculine features of the skull. I've read about sexual dimorphism in humans but I've seen a lot of females with a completely flat back head rather than round, deep set eyes with a brow bone and forehead that isn't round, an overall robust skull and males displaying what are considered feminine traits. I am confused, I see that generalization does not exist, those traits I just described are neither masculine nor feminine traits, they are only related to individual genes and ancestry and have nothing to do with gender. I would be happy to hear your explanation. Thank you .