GBP/JPY's P line was already breached with bullish breakout. And Since 163.90 (latest high ), this descending wave should be a retry of touching with ex-descending resistance P line.
In addition to that, there could be a triangle breakout is still working. Its target: approx. 167.90 will be the next coming upward wave's direction.
GBP/JPY's 11 Swings down since 195.88 was already done at 151.64.