There is a completed shark pattern on gbp/jpy daily chart.
The shark pattern is determined by 88.6% of XA and 1.618-2.618bc, als C is 1.13-1.414 times of BC.
Now potebtial reversal zone do give support for the price. If you see the price action previously, 117-117.80 is the key support area for GBP/JPY
Buy it and use 38.2% of CD as the target