Ultra-realistic medium portrait of old woman with long white hair]

Ultra-realistic medium portrait of old woman with long white hair], skin texture with visible pores, fine hairs and subtle imperfections, single [dramatic] light source casting deep Rembrandt shadows, eyes reflecting [emerald] catchlight, raw emotional stillness, dark [emerald] to black gradient background, cinematic depth, editorial portrait photography, volumetric light, professional color grading --ar 3:4 --v 8