Australia seen from the road
Australia is a pretty big country. About 20 times Europe.
If you travel around it, you will see a lot of it and it will change a lot, from wet to dry, from green to red, from forest to cities, from bush to small towns and do on.
If you travel around the country, you must be aware of the big distances and be ready. That means having extra petrol, litres of water, some food for a few days, one or two spare wheels, a first aid kit and letting people know where you plan to arrive and when.
And KNOW the road. Don't go on side tracks. IF something happens, how and when will people find you ?
Knowing that and being ready, it is a lot of fun to travel Australia. Get some friends and have fun :)