Cartoonish Children's Book Illustration

I'm seeking a talented illustrator for a children's book aimed at 4-7 year-olds. The book's main theme is friendship.

Requirements:
- Age-appropriate, engaging cartoonish illustrations
- Experience with children's books
- Ability to convey themes of friendship through art
- Open to revisions based on feedback

Ideal skills & experience:
- Strong illustration portfolio
- Experience with 4-7 age group
- Creativity and attention to detail

Please include samples of previous work with your bids.