Create a lively cartoon illustration of a night market in a city, illuminated by colorful lanterns and streetlights, with fog swirling around the stalls. The scene should be bustling with cartoon characters, including vendors selling whimsical foods and shoppers exploring the market. Incorporate playful details like a cat sneaking around the food stalls and a child trying to catch fog bubbles. The fog should add a magical quality to the atmosphere, softening the edges of the stalls and creating a sense of mystery. Use a vibrant color palette with warm tones to evoke a welcoming ambiance. This illustration should convey the excitement and charm of a foggy night market, inviting viewers to immerse themselves in the lively scene.