Create an illustration of an adorable llama exuding playfulness and joy, featuring a mischievous grin and a cheeky expression. Envision the llama wearing a quirky, colorful hat and playfully sticking out its tongue. Use bold, vibrant colors and dynamic lines to capture its lively spirit. The design, intended as a sticker graphic, should have a crisp vector style with clean contours against a white background. Add charming details, like sparkling eyes or a whimsical scarf, to enhance its delightful personality while keeping the essence of fun and cheerfulness intact.