While I'm personally not a big fan of rhyme, I suspect the rhyme will add to the appeal for many children. The story is easily accessible for the target audience with only one or two more difficult words such as 'appointing' and 'cloaked'. Most important of all, the story has a strong structure. The repetition of the first two lines of the book at the end gives the story a particularly satisfying conclusion.
The illustrations take the form of a digital collage and are both clever and appealing. I particularly smiled at the images of the Snow Queen in her grey business suit and red-rimmed spectacles with her crown jauntily perched on top of her hair. Children are likely to prefer Princess Ellie who reminds me of a modern version of the iconic little girl in [[The Tiger Who Came to Tea by Juduth Judith Kerr|The Tiger Who Came To Tea]] (although that is probably really because of the distinctive stripy socks).
There is good pacing in the pictures and I loved the use of shaped text and large words to add emphasis, particularly in the double page spread when the machine explodes.