All pics taken in Hills District of Sydney.
2nd pic looks like a chestnut (maybe Castanea sativa)
3rd pic looks like autumn foliage of crape myrtle (Lagerstroemia sp.)
again, I will suggest that is is far better to take five pictures of on plant that five plants. Your probability of a good ID goes up with more plant parts to see.
That said, the 5th one reminds me of the odd yew relative: Harringtonia
Ditto to a chestnut for #2, but not C. sativa; more likely one of the Asian species.
I think #1 is Citharexylum fruticosum.
#3 reminds me of Lagerstroemia indica.
Maybe Montanoa grandiflora.
BTW, when requesting ID for a new plant, it's best to start a new thread rather than posting at the end of a previous one.