Help needed please Mummy's!!

Am

Okay so this is my gorgeous daughter India-Theia, she is almost six. Yesterday she came home in floods of tears.. Says the older kids tell her she looks like Mowgli of jungle book and make fun of her freckles. She said she wishes she could take off her own face and swap it for a new one. I know I'm biased but I think she's absolutely unique and stunning!! I told her not to care what anyone else says, because she's gorgeous to me.. but she said 'I'm only gorgeous to you because I'm yours. But really I'm not." 😭 What can I do to help her? I hate she's getting a complex at 5 and kids can be so cruel! 😡