Ensure the 3D image of the middle-aged donkey with a guitar avoids disproportionate structures and asymmetrical faces. Focus on symmetrical and well-balanced features for the donkey, maintaining realistic animal proportions without humanization. Exclude any additional characters, keeping the focus solely on the non-anthropomorphic donkey and his classic acoustic guitar. Emphasize accuracy and attention to detail in depicting the donkey and the instrument, highlighting that the guitar should be singular and not overly abundant in the scene to maintain authenticity and visual appeal., ugly, deformed, noisy, blurry, distorted, out of focus, bad anatomy, extra limbs, poorly drawn face, poorly drawn hands, missing fingers, photo, realistic, text, watermark, signature, username, artist name