Gbp/Usd – predicting moves – final result

This Gbp/Usd 1 min chart was captured about 80 mins into European session. Short trade was triggered and profit was met – all within 40 mins!Was it luck? Maybe!
What was it that tipped the scales for short trade? Price was near initial high for most of Japanese session;
Previous day was an inside day bar – this results in traingles in smaller time frame charts, and trades are looking for break