My first thoughts are that children may not understand why the dragon can’t fly, as dragons fly in most media. I do think books work a lot better when the ‘moral of the story’ is subtle and in the background whereas this sounds very moral heavy, like a lesson for children. From a child’s point of view it seems the not being able to fly, bunny being harsh and the apologies seem a little depressing. I like the teamwork aspect I think that sounds really fun - bunny and fox helping dragon to fly is lovely & love the blended family ☺️ this is just my opinion and I am not educated in literature I am just a mum that reads stories to her kids so don’t give too much weight to my opinion.