To be eligible for a second working holiday visa in Australia you must have completed three months specified work* in regional Australia while on your first WHM visa. This could be work that you have completed as a direct employee or contractor.
If you have completed your specified work before 31st Aug 2015 - This could be paid or unpaid work, including voluntary work. If you have completed your specified work after 31st Aug, you need to be able to show proof of paid employment such as payslips or tax documents.
* Specified work is work that is undertaken in a 'specified' field or industry in a designated regional area. Specified work is any type of work described in the list below:
- plant and animal cultivation