Generate a photo-realistic image of a human hand with the following characteristics: five fingers, with the thumb positioned at a slight angle away from the other fingers; the fingers are slightly curved, with the fingertips pointing slightly downwards; the skin on the hand is smooth and unblemished, with a slightly pinkish hue; the hand is positioned in a relaxed, natural pose, with the fingers slightly apart and the palm facing upwards. The image should be high-resolution and detailed, with realistic shading and texture."