A Journey Through Nature: A Children's Book Cover

an easy illustrated childrens book cover of a 5 year old boy thats sad walking down a path with nature surrounding it. everything around him is gray. him theres a small trail of colorful paint behind the boy. three kids follow him a 5 yr old boy that has red hair wears red and has red eyes, a 5 yr old boy that has blue hair, blue eyes, and blue clothes, and a 5 yrs old girl that has long wavy yellow hair, yellow eyes, and wears a yellow dress with overalls. they are following the gray boy to make him feel better