2 things wrong conductors to the left are from an SWA cable that supplies an outside shed with no earth,
and…

All terminations should be inside an enclosure to help to stop fiires starting when there is a fault…

Too many cables being terminated in Juction Box and no mechanical protection of the conductors showing…

Too many cables being terminated in Juction Box and no mechanical protection of the conductors showing…

Silver foil has many uses and this is not one of them.

Pull cord switch not fixed to a surface so everytime it is used it is pulling on the cables.