This will be a contest for an ebook cover and a CreateSpace book sized 5x8. Given the small thumbnail on Amazon, something simple, eye-catching and unique would be ideal. I included this link to help give you some ideas as to styles:
The story itself revolves around a disabled cat named Kitty Wampus who was born missing her right rear leg and involves her teaching her new classmates not to judge a book by its cover, that she has much to offer if her classmates take the time to get to know her. She is starting at a brand new middle school (6th grade) and the story details the initial reactions of the other kittens as they see her in her wheelchair and walker, how a few students look beyond that she looks different, they reach out to her and really get to know her. Eventually many of the students realize she is a lot like them but just needs the wheelchair or walker to get around. I uploaded some Pinterest book covers that may help, any elements of a school setting such as chalkboards, hallways etc may help frame things. As far as the cover, there won't be much in the way of lettering, only the title and author's name with the title larger as it will be central to the story. I will include files which contain the illustrations inside the story with the central character, Kitty Wampus, being the kitten with 3 legs. This was a labor of love as the central character in the story, Kitty Wampus, is the feline version of my own daughter and your help in this self-publishing endeavor is greatly appreciated.