The only reason helping Cable not falling is to come from the resilience of USDollar .
Look at on the chart : GBPUSD is trading in Kumo cloud, and reject 1.5675 many times , this proves 1.5675 level is a strong resistane.
Most likely I think Cable will sink below the Kumo cloud.
I see a on the chart with a , this is a big with any break always send a signal of new trend.
I think GBPUSD is unable move up currently.
Market should dump GBPUSD to 1.5335 level where I think that is the fair price for GBPUSD