Prompt: Create a high-fidelity Disney Pixar-style 3D animated avatar of a joyful male runner based on the provided image. The character should have a medium skin tone and a lively, engaging smile with prominent cheekbones and evenly spaced, white teeth. His eyebrows are arched upward, adding to his friendly and energetic demeanor. The eyes are round with light green irises, and they should sparkle with a mixture of enthusiasm and kind-heartedness, characteristic of Pixar's expressive character design. His hair is very short, with a neat, military-style buzz cut and is a shade of dark brown. He should have a lean, athletic build appropriate for a runner, showcasing defined but not overly muscular arms. His facial structure is squared with a strong jawline and a small cleft on his chin, giving him a determined yet approachable look. The character is wearing a sleeveless black athletic shirt with a distinctive green logo that suggests a community or a running group, promoting an inclusive and motivating atmosphere for physical activity. The attire should be styled in the vibrant, exaggerated, and smooth textures typical of Pixar animations. Don't forget the wearable technology on his left wrist, indicative of a modern, health-conscious individual who tracks his fitness data. His gesture is a thumbs-up, reflecting a positive attitude and a passion for running. His posture is upright and forward-moving, capturing the dynamic energy of a runner in motion