Prompt
Create a realistic portrait of Otto Heinrich Warburg, a middle-aged to elderly German physiologist and chemist, sitting in a laboratory setting, surrounded by equipment and papers, with a thoughtful expression, wearing a suit and tie, and holding a notebook or pen, in a style reminiscent of 1950s-60s photography, capturing his intensity and dedication to his work, particularly in the fields of biochemistry, physiology, and cancer research.
