Prompt
Create a realistic portrait of Sir John Eccles, a middle-aged to elderly man with a dignified expression, wearing formal attire including a suit and tie, possibly with a slight smile. He should be depicted in a contemplative or professional setting that reflects his work in neuroscience, such as in a study with books or in a laboratory setting with subtle hints of his research, like diagrams of synapses or neurons in the background. Incorporate elements that signify his achievements, such as a Nobel Prize medal or a subtle image of the Royal Society or Pontifical Academy of Sciences insignia. The style should be photorealistic, capturing the essence of a man who was a prominent figure in his field, with attention to detail that reflects his personality and contributions to science.