You know what I love about Nymphadora Tonks?
She was a metamorphmagus so she had the power to change herself into like the most gorgeous woman ever, but she didn’t. Instead she gave herself this bright-ass-pink hair and changed her looks to please herself, not to please others. You go, Tonks.
The only time she changed her looks for others was to make them laugh and make them happy by doing funny things. And thats the best way to be a metamorphmagus.