Realistic Fantasy Art for Book Series

I'm seeking a talented artist to create digital artwork for my book series. This includes not only the book covers but also illustrations throughout the pages. Additionally, I need a side book resembling a sketchbook filled with creatures and fantasy elements... (Budget: $15 - $25 USD, Jobs: 3D Art, 3D Illustration, Art Consulting, Art Installation, Caricature & Cartoons, Character Design, Concept Design, Digital Art, Illustration, Illustrator)