Children's Book Illustrator / Format Needed

I'm looking for an experienced illustrator to create high-quality illustrations for a children's book. The illustrations should have a specific style, with realistic, cartoon, or whimsical characteristics. I have already developed a story or theme for the book that the illustrations should reflect. There will be more than 10 illustrations needed for the book. Therefore, the illustrator should be comfortable creating a large number of illustrations that adhere to the same theme. The illustrator will be expected to provide updates and deliver the illustrations in the format requested. The book will need about 12 2-page artwork or 24 single page artwork that is mainly about humans.