All three of these siblings are insecure about their freckles and ginger hair. Viktor has gone as far as dying his hair black.
Neither of them really talk about their insecurities or cover up their freckles. Their reasoning is that their mother, Ciara was the one who handed down those traits. She not ugly at all, she's very beautiful. They all believe she is beautiful, so why doesn't it feel the same on them? If anything, they'll end up making her feel bad about hair handing down her traits. They don't want that.