GBPUSD approaching a possible PRZ for a short?

GBPUSD is showing some weakness to move further up. But I still see a possible retest to the trendline support possibly completing a Gartley pattern. For me the price to watch is 1.57000 which has been tested several times and rejected in the recent past.
So short term, I believe there is yet another upward move left. What do you guys think?