Many many years ago, I wrote a children's story which while it wasn't taken up by anyone a lovely person at Bodley Head wrote to me telling me what was wrong with it and giving me a bit of advice. I've not really "written" for children since, I mean I made stories up for my children but it was generally done as I was going along and not written down. I started to think about the original story for children recently and thought that I would give it another go. I remembered what the agent said and hopefully done it right this time.
It's not quite finished yet but not far off.