Seems to be a good match for M. hamaxitodes, a Macrobathra genus species recorded for NSW, see Bold Systems 4: http://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=372764 Also iNaturalist: https://inaturalist.ca/taxa/775200-Macrobathra-hamaxitodes/browse_photos, Also on ALA: https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:d38c80bd-acd3-4c67-b2c0-48658c166f56#gallery If correct, this photo is the best available!
Bronwyn: I have taken the liberty of writing a webpage about your amazing photo of this tiny moth, at http://lepidoptera.butterflyhouse.com.au/cosm/hamaxitodes.html I hope you approve? Don