"Design a cartoon character of a baby in the style of Hanna-Barbera. I want it to have charming and comical features, with a rounded, expressive appearance. The baby should be smiling with big, bright eyes, round cheeks, and a small tuft of hair on top of the head. Dress it in a classic diaper, and use vibrant colors with a retro touch, similar to classic Hanna-Barbera cartoons from the 1960s. The background can be simple, just something that complements the character without taking attention away from it