I'm always uncomfortable giving artistic feedback because I'd never come anywhere close to how good this already is if I tried, but... Ginny's hairline is a little high, or her profile is too far to her right given where her hair is. Her sleeves are lovely, but her right upper arm is a little odd. Harry looks a tad frowny. Other than those minor details, though, it's a lovely concept and the details so far are marvelous (weaving on Ginny's clothes, the general mood of the whole scene).