GBPUSD accelerated down to 1.6800 at the end of last week, so we suspect that pair is falling within an extended impulse. Ideally price is now recovering in wave (iv) that is part of an extended and ongoing wave 3 that may reach levels around 1.6700 by the end of the week. Only rally back above 1.6955 will invalidate the current count; so until then trend is down.
GBPUSD 4h Elliott Wave Analysis