GBP has been bearish over the past month. The market turning at 148 has proven to be an important level for GBP bears. At the same time the UK elections happening on the 8th of June is very likely to be a key driver in determining where the GBP will turn next.
JPY on the other hand has been gaining strength against most other major currency pairs excluding EURJPY (possibly due to French election outcome) and NZDJPY.
This chart provides some of the fundamentals outlook, however UK elections will be in focus.