You can fill in his eyebrows, but stroke the hairs in. Don't make them totally red like guidelines. I've put red lines in a direction so you can shade it, stroking that way. Observe his lower lips and how the tiny lines are placed. That gives great details and texture. Emmett's hair is short with some curls for swirls! Add his eyebrows, shading to eyes, ears, hair, lines to his neck and tee-shirt.