Passport photographs when we are all trying to look relaxed but not smiling and are as intense as anything always look horrendous. My UK passport has expired and I am rather glad of that because I bear a striking physical resemblance to Myra Hindley in the photograph. I don't think I do in real life and it is mostly a result of my hating to be photographed. Anyway, we are what we are and what we are is is greater than how we look.
Lines on our faces are the maps of our lives. Look at all those photographs of Donald Trump, whose face was, admittedly, not a lovely thing when he was young, but nowadays all the lines, including his mouth go downwards. If you have always been angry, aggressive and bad tempered, then the map will show it. If you have always been joyful, loving and kind, then the map will show that too.