Dog Man: Redder in rood

I'm curious about the creative process behind this character — did Pilkey have a specific message or theme in mind when designing him?

The comic style is so lively and funny — I wonder if Pilkey intended this to be a book for all ages or primarily for children?

The artwork is so expressive and energetic — I'm interested in how Pilkey decided on this style and how it helps tell the story.