How to reflect the effect of sunshine when painting?

Um ... . Didn't I tell you the message you sent me? The brightest part is where the sunlight reflects. Shade the whole picture with a pencil, and then highlight the parts with an eraser. This effect is the simplest way to express sunshine. If you color it, the principle is the same. The brightest part is where the light exists. The specific control depends on you ~ and the colors you draw don't need to be too complicated, no more than four.