Close-up of a photorealistic beaver wearing a yellow construction helmet and holding a small hammer, working on an eco-friendly dam. The beaver’s focused eyes and textured fur reflect in the calm water as logs and branches are strategically placed around. The background shows a natural wetland with dense plants, a warm natural light filtering through, Nikon D850 sharpness, detailed fur, earthy tones, eco-architecture, ultra-realistic, nature documentary style, soft background bokeh, precise lighting and shadow, realistic water reflections --ar 4:3  --s 750