Check out SCBWI British Isles' fantastic blog magazine:
And this fabulous blog for picture book writers and illustrators:
And this one: http://www.notesfromtheslushpile.com
If you've written a a non-fiction picture book:
If you've written a piece of teen fiction:
The The Lighthouse Literary, run by editors Sarah Stewart, Senior Editor at Floris Books, and Cat Clarke, author and previously Senior Commissioning Editor, Non-Fiction, at Scholastic.
Catherine Coe is a freelance editor specialising in consultancy and editing services for writers of children's fiction. Catherine was previously senior
commissioning editor at Orchard Books and editor at Hodder.
Or you can get advice from experienced editors Amber Caravéo and Joanna Moult at Skylark Literary, a specialist Children's & YA literary agency and creative consultancy, seeking and supporting the best new voices in children’s fiction.