AI Image Prompt:
Visualize an adorable, chocolate brown, fluffy Labrador retriever with sparkling blue eyes that seem to twinkle with mischief. It appears to be laughing, its snout crinkling up in a playful manner, showing its pink tongue lolling out and pearly white teeth. The wagging tail and the jaunty tilt to the ears, give the impression of it partaking in some mirthful moment. The play of light and shadow on its lush coat further amplifies the jovial scene. Create this delightful image on a backdrop of a sunny, verdant park.