A dimly lit bar scene, with Holden sitting alone at a table or counter. In front of him: a single glass (maybe half full) — make it the focal point. Around him: empty chairs or faint shadowy outlines of people in the background, to show he’s surrounded by others but still isolated. Holden’s posture: slouched, head slightly down, hand around the glass — to show his “lonesome as hell” feeling. To emphasize the loneliness, you can use a lot of empty space in your drawing, so he looks small compared to his surroundings. See more