On the 1H chart we already can see smaller signs of rejection, BUT when comparing the current move with the last two legs in this triangle, there are still no signs in 4H TF, which I'd like to see before shorting this pair.
The first target area is shown on the chart. Once met, keep an eye on Price action as there might be even a breakdown.
Note: This is not a call to short this pair now. If the upper trendline gets broken, this idea will be invalidated.