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 we met because of the intersection of time，The dark purple sky above is dotted with stars, gradating to the deep blue sea below as the background of the picture.，Make the painting more tragic，Using the style of Korean comics。