GBPAUD breakdown

Now, that's a vicious sell as far as I can tell. It happened also on a very high volume and it broke the support line forming the trading channel ( red dotted lines).
It is possible to see a retrace to test the support (which, if it happens should act as a resistance), however on a medium time-frame it looks to have a bearsih posture.
Went short immediately after BoE rate decision and minutes.