Because of the (+ve) momentum continuation showing on the daily, Sterling is breaking out in a Zigzag (encompassed in a ending leading diagonal), that will take out the current (Green) neckline, and move to attack the next higher (Red) neckline.
Confluence on (+ve) momentum on 1&4 HR ( and even on 1 HR &15 mins) are a buy & hold swings to targets shown
Intra-week & Day traders buying (-ve) momentum extremes on the 15-min time frame (probably every two days), can hold to see profits at R1/R2 on the 1 HR time frame by week end (for intra-week traders), & R1/R2 on the 15 min time frame for day traders.