I need 13 illustrations for an ebook

I have developed a short story ebook. I need 13 designs, one front cover and 12 pages, that can be uploaded to Canva ebook template. The book is targeted at 3-6 year olds. The book is based on polyvagal theory and breathwork modality. The fictional character is called The Vagoose but please feel free to give me your suggestions on how to make it more relatable to the age group. The child should be gender neutral to appeal to all pronouns.