Based on the 4hr chart there is a double bottom forming. Price already broken through the resistance and then hovering around it for some time.
The last 4hr candle close indicates another close above the resistance so i am convinced that price will continue going up
Buy GBPAUD 1.8100
Stop loss 1.8020
Take profit 1 @1.8180
Take profit 2 @1.8260
good luck