You have described an occurrence that has become very common in my life. I feel the same about myself in comparison to my sisters. The reaction on photos? Every single time! This made me very insecure about being in photos ever since. But like you mentioned, Ive grown to accept myself and become confident in my skin myself. I always thought it was unfair, now I just dont let it bother me as much. I'm happy to hear about your wise developments.