Extreme close-up macro portrait of a green viper snake, focusing on the eye and intricate head scales. Deep dark matte slate blue textured scales on top, transitioning into vibrant neon lime green scales along the jaw. Large, highly detailed glossy dark eye with a sharp vertical slit pupil reflecting subtle light. Dramatic moody studio lighting against a pitch-black background, deep shadows, high contrast, crisp focus on scale textures, hyper-realistic, 8k resolution, vertical wallpaper composition --ar 9:16