GBP/AUD, H4, Butterfly and Bat pattern.

The yellow Harmonic is a Butterfly pattern. The D point of the Butterfly will make point B of the Bat pattern (Purple Harmonic). The Bat pattern can also form into a Crab pattern, so look for reversal at the 88.6% of XA Fibonacci, if no reversal pattern look for 161.8% of AXA fib ext.