Here are a number of organisations that can support you in your writing and illustrating.
Australian Society of Authors The Australian Writer’s Marketplace ACT Writers' Centre Writing Groups May Gibbs Literature Trust - Provides residencies for writers and illustrators of children and YA books to encourage and support their work NSW Writers' Centre NT Writers' Centre Qld Writers' Centre SA Writers' Centre Society of Children's Book Writers & Illustrators (Australian Chapter) Sydney Writers' Centre offering courses in children's & young adult writing (one even online) and picture book writing. Tasmanian Writers' Centre Victorian Writers' Centre writingWA Katharine Susannah Prichard Writers’ Centre - Writer's Retreat (pdf poster). Endorsement by author Kate Walker Pinerolo The Children's Book Cottage. August Newsletter [PDF]
Each publisher has different expectations for submitting manuscripts. Be sure to read their submission guidelines so as not to waste your time, or theirs.
Australian Publishers Association - Getting Published Australian Publishers & Booksellers - National Library of Australia Black Dog Books Fremantle Press Pan Macmillan submission guidelines Publishing with Penguin Scholastic - Manuscript Guidelines Text Publishing FutureTrack Australia
These assessment services are examples only and their listing does not imply endorsement by the CBCA
Create a Kids' Book - Dr Virginia Lowe Enterprising Words - Di Bates The Manuscript Appraisal Agency - Brian Cook www.sallyodgers.com - Sally Odgers Picture Books @ Pinerolo with Margaret Hamilton and Dee Huxley October 22nd 2011 PalmerHiggs - provides a service to assist with self-publishing
The Style File
Writers' Bookcase