Perhaps it's trying to evoke an emotional response from the viewers. The tired black man with red eyes might be a way to draw attention to certain issues or themes.
Maybe he's been working long hours and is exhausted. That could cause his eyes to become red and make him look tired.
It could be to show they're overworked or haven't slept well. Maybe to add a sense of exhaustion or stress to the character.
Maybe the man had a long and hard day at work or was involved in some physically demanding activity.
Maybe it's to highlight certain social issues or to create an emotional impact.
Maybe he's been swimming for a long time and hasn't had a break. That could make anyone tired.
Typically, a tired man in a cartoon might have dark circles under his eyes, a slow walk, and a lack of energy in his movements. It's all about communicating that feeling of exhaustion visually.
Start with drooping eyelids and add some dark circles under the eyes. Make the eyes look a bit glazed over.
To draw tired cartoon eyes, make the upper eyelid lower and the lower eyelid kind of saggy. Add some shading or smudging around the eyes to give that worn-out effect. Also, the pupils might be a little unfocused.
The 'black man with red eyes' could be a character in a horror story where his appearance is used to create a sense of fear and unease. Red eyes often symbolize danger or malevolence in many fictional works. He might be a villain who haunts a particular place or preys on the weak. It could also be part of a more complex narrative where his origin and motives are gradually revealed as the story progresses.
In such cartoon art, a tired old man might have a weary expression, maybe with lines on his face indicating stress and fatigue. His body language could also suggest a lack of energy, like slow movements or leaning against something for support.