Adventurous Children's Book Cover Design

I'm looking for a graphic designer with a knack for creating engaging and vibrant children's book covers. The task requires the illustration of the main characters who are humans and should be designed to cater to the 7-9-year-old age group. The cover should clearly convey the adventure theme of the book. Previous experience in children's book illustration or working in the children's media industry will be preferred. A clear understanding of the interests and aesthetics of the specified children's age group will serve as an added benefit. This project will not only require graphic design skills but also creativity to bring fictional adventurous human characters to life.