Create a photorealistic portrait of a kind and patient teacher delivering a lecture. The teacher stands confidently in front of a chalkboard filled with notes, wearing a crisp white shirt that reflects their professional demeanor. The background is slightly blurred to focus attention on the teacher, highlighting their gentle and benevolent expression. The photo is taken from the waist up.(appropriate age: 1.6), (blur background: 1.3), 8k, soft light.