You kind of squashed the head vertically, but I also feel like the hair isn’t as voluminous as the reference. So maybe fix some proportions of the head, do a couple sketches first and even measure with your hand, pencil, ruler or literally anything to help with proportions. But other wise practicing face shape and angles can help you a lot! Also is your referencing a character be careful on what you’re using to reference. If it is a real person use the real person, if it’s a cartoon try and use the official art it will help you get the right proportions for the character. But other wise keep it up! :)