Realistic Animal Illustrations for Children's Book

I'm seeking a talented illustrator to create realistic, engaging illustrations for a children's book. The book will feature a variety of animals as main characters, specifically farm animals, wild animals, and pets... (Budget: $250 - $750 USD, Jobs: Art Consulting, Art Installation, Caricature & Cartoons, Character Design, Concept Art, Graphic Design, Illustration, Illustrator)