This panel from a golden age American comic book depicts an intense action scene on a wooden boat floating on a blue body of water. The central figure is a superhero, likely Captain America, based on his iconic costume. He's wearing a blue mask, red gloves, a blue and white shirt with a red diagonal stripe, and red pants. His hair is styled in a spiky, grayish-black look typical of the era.

The superhero is in the midst of delivering a powerful punch to his opponent. His fist is extended, connecting with a yellow and red explosion of energy, indicating the force of the impact. The villain, dressed in a brown suit with a green tie, is being thrown off the boat. We can see his back as he's being propelled into the air, with his arms outstretched and legs bent.

The background shows a clear blue sky, suggesting a bright, sunny day. The wooden boat has a brown color with black outlines, and we can see the slats of its structure. The action is taking place on the water, which is depicted in a light blue color.

The panel captures a dramatic moment of superhero combat, with the hero's powerful punch and the villain's dramatic fall creating a sense of excitement and tension typical of golden age comics.