Prompt
Create an image of a dignified, elderly British composer, Sir William Walton, sitting in a comfortable study with a warm, classic atmosphere, surrounded by sheets of music, books, and a few personal mementos. He should be dressed in formal attire, possibly with a suit and tie, and have a thoughtful expression on his face, as if lost in musical contemplation. Incorporate some subtle hints of his nationality and profession, such as a British flag or a musical instrument in the background. The style should be realistic, with a touch of traditional elegance, reflecting the era and sophistication of the subject.