Looking to Short GBPUSD on Bear Bat Pattern

If tomorrow BoE rate decision see a rate hike, it will push gbpusd up to 1.5000. However, my sentiment is that it will not be a long-term bull as Brexit talks is still a concern that that affect UK economy adversely. I looking to short on Bat formation at Fibo R 76.8

Reward to Risk is 10: 1

If price closed above 1.3655, this analysis will be invalid