"Create a vibrant and lively cartoon illustration in a vector style featuring an African girl standing confidently in pink pajamas, adorned with pigtails. Capture the essence of joy and innocence in her expression, utilizing a bold color palette to bring out the playful and cheerful atmosphere. Let the vector style emphasize clean lines and smooth shapes, ensuring a delightful and whimsical representation of this charming character. The illustration should radiate positivity and warmth, making it suitable for a children's theme or any context that celebrates the spirit of youth."