Win with short of GBPUSD - weekly chart

As it shows the picture, I think GBPUSD will go downside until 1.5000. It will take almost 3 weeks to arrive there, but it will touch this level. I entered short at 1.5280 with stop loss at 1.5375. I expect to take profit at 1.5000. It's an opportunity I can't miss. Risk/reward ratio is 7.58. Take it or leave it. :)) What do you think?

P.S. MACD is bearishhhhhhhh a lot.