Mastering the Art of Brooding

A cartoon image shows four superhero silhouettes standing on a ledge overlooking a city. Batman is on the far left, looking down. Next to him is a sign that reads 'BROODING OVER THE CITY BE CONSIDERATE 10 MIN. MAXIMUM'. To the right of the sign are Spider-Man, a red-caped figure with a glowing eye, and a fourth hero. The background is a gradient purple sky.