If you want trade GBPAUD, I suggest you make a scalping for a sell until the support: 1.78646 area and wait if a breakout happens for big sell otherwise the GBPAUD will be again up for a retracement.
The best chart you can make yours following the trend and will help you to take the best decision.
I see a good high volume and the price going down !
Sell Target 1.75433
Buy Target 1.80272
Good Luck!