I am experienced in a variety of voice work project types, including video voice over work which sounds similar to yours. I understand that you require a clear voice for informational videos, and that you would like a female Australian voice for this.
I am originally from the UK but have lived in Australia for many years, and would describe my accent as UK with Australian overtones. I have attached voice samples to a private message which also contains more information, so you can decide for yourself whether my voice is suitable for your purposes.
Good luck with your project.