@Hejor1 : The six basic common Australian caterpillar foods are: Gum leaves, Wattle leaves, Herbaceous plant leaves, Grass, Lichen, and Flower petals.
If your caterpillar rejects all five, then rose petals and thinly sliced apple are good standbys. Apparently plants in Rosaceae have developed very few poisons. I popped copies of a couple of your photos into http://lepidoptera.butterflyhouse.com.au/psyc/psychbm.html I hope you approve ?