Prompt
                                        
                                            Create a realistic portrait of a mature British novelist in a contemplative pose, sitting in a classic London study with books and papers scattered around him, wearing a pair of reading glasses and holding a pen, with a subtle hint of a thoughtful expression on his face, in the style of a high-end literary magazine cover; the subject is Ian McEwan, a renowned author known for his literary fiction, with a distinguished and introspective demeanor, captured in a warm and inviting color palette.