Writers' and Illustrators' Groups
Here are a number of organisations that can support you in your writing and illustrating:
May Gibbs Literature Trust - Provides residencies for writers and illustrators of children and YA books to encourage and support their work
Each publisher has different expectations for submitting manuscripts. Be sure to read their submission guidelines so as not to waste your time, or theirs.
Manuscript and Illustration Assessment Services
These assessment services are examples only and their listing does not imply endorsement by the CBCA