Hair color and weight loss. Both those can make a BIG difference. If you're good with the weight then the hair color should be something you can look into if you want to switch up your look. But just make sure it suits your skin tone otherwise you have a problem..
Hair color and weight. Think about why you want to change how you look though, before you do anything. If it's for you, have fun with it. If it's to match what someone else likes, eff that. Be who you wanna be.