"Illustrate a bright and colorful cartoon-style image suitable for a children's book. Depict a cheerful child with light brown skin and short black hair, wearing a blue t-shirt and jeans, standing against a simple white background. The child is smiling and holding a large magnifying glass over their forearm. Through the magnifying glass, show a circular close-up of the skin texture. Ensure the magnified skin area is detailed yet maintains the friendly cartoon style, using consistent line thickness and a vibrant color palette.