Children's Book Illustration Refinement

I'm seeking an experienced illustrator to improve my existing children's book illustrations for ages 4-7.

Key tasks include:
- Polishing characters and scenes
- Ensuring style and color consistency across all pages
- Fixing specific details like faces, backgrounds, and text placement

Ideal skills and experience:
- Strong illustration skills, especially for children's books
- Ability to maintain a cohesive style
- Experience with digital or traditional illustrations

Please provide a portfolio showcasing relevant work.