Create an illustration of an adorable llama with a playful spirit, capturing its cheerful nature. The llama should have a mischievous expression, possibly sticking out its tongue or wearing a comical hat. Use bright and lively colors with dynamic lines to enhance its playful vibe. Design it as a sticker graphic, in a vector style with clear contours, set against a white background. Add small creative touches to give it a unique charm while maintaining the essence of the concept.