Joe Kubert was 18 years old in 1944 when he drew this story for All-New Comics #10.
What were you doing when you were 18? What was I doing? It was a long time ago but my memory is of chasing girls, not sitting at a drawing board. Joe was mentored by artists like Mort Meskin, who taught him a lot about the language of comics. Since his teen years, during a long, long career, Kubert has spoken that language very well.