My interpretation how pages 4-5 should be. I think the wolf should extend to become the background of page 5. Possibly doesn't even need anything else on page 5, but I've put a panel in for an example. Since page 4 has a sequence showing the wolf's growth, having a wolf which takes up 3/4 of the double page spread seems logical to me.
My ideas for pages 10-19
Some experiment examples to give a bit more weight to my poor thumbnails above.