Although Shark patterns are often avoided due to complications in idenitifaction there seems to be a valid and completed shark pattern on GBPJPY 15 min charts, The D point found confluence and is supported by a potential 2.618 trade which is currently in play. If I were entering this trade after this late identification of the pattern I'll be looking for a .618 retracement from the double top to downleg for a bounce continuation towards the shark patterns T1 and T2s.