GBPUSD at important level: reversal ?

Since January 2017 until April 2018, GBPUSD was made triple three wave, there are combination of three corrective wave (zigzag, zigzag, and double three). After the wave formed GBPUSD corrective down, and i think GBPUSD is at an important level right now. GBPUSD is moving close to the curve line and likely to complete corrective wave (c). Based on this condition, then I expect GBPUSD to be bullish if a price action reversal is formed at this level. Conversely, if there is a break down from the curve line, then GBPUSD will go down but the elliottwave scheme is fails.

NOTE: Invalidation EW if break down 61,8%