Draw the cover of a fantasy time travel novel，An overlapping picture of a middle

Draw the cover of a fantasy time travel novel，An overlapping picture of a middle-aged man with brown hair and a boy with blond hair.，The blond boy grew up to become the brown-haired middle-aged man，But because of the intersection of time, they met and ended up jumping off a cliff.，The purple sky above gradually fades to the deep blue sea below as the background of the picture.，Make the painting more tragic，Using the style of Korean comics。