Take not that an inverted head and shoulder breakout has failed twice, but there is hope as long as the rising support at 156.40 is not breached.
Heading into the weekend, there also a possibility of profit taking in short Sterling positions.
Overall, it appears the cross is likely to fly, but i would still wait and see if 15-min candles remain above confluence of falling and Inv. neckline and then kump onto longs.
Be vigilant as repeated failure to stay above confluence of support risks sending the pair down to 156.40