Ultra-Realistic Elderly British Professor Portrait

Ultra-realistic portrait of a distinguished elderly British professor, late 60s, silver-white hair neatly combed back, deep-set intelligent eyes with fine crow's feet, weathered yet dignified skin texture with natural pores and subtle age spots, wearing a well-tailored tweed blazer with elbow patches and a subtle patterned tie, warm confident expression suggesting quiet authority, positioned against a dramatic Arizona desert red rock formation at golden hour, warm rim light from the setting sun separating subject from background, studio three-point lighting setup with soft key light and gentle fill to preserve facial detail, natural skin subsurface scattering with warm undertones, shallow depth of field with the red rock formation softly blurred behind, shot on Leica SL2-S with Summilux 50mm f/1.4, ISO 200, high-fashion Vogue editorial look, tack-sharp focus on the eyes, professional color grading with warm desert tones balanced against cool shadow accents, shot for commercial use, hyper-detailed skin texture, individual strands of hair visible, photorealistic, 8k resolution, perfect for social media avatar or influencer profile picture --ar 1:1 --style raw --v 6 Negative prompt: cartoon, illustration, painting, plastic skin, overexposed, waxy skin, deformed features, asymmetrical face, low detail, CGI, flat lighting, blurry background subject mismatch