Externally not a lot obviously wrong, maybe the knock out in the socket top is not the right IP rating for the environment.  A squirt of mastic is the lowest acceptable fix for that. 

Cable is clipped or in trunking, route is visible so that's OK.  No primary insulation or copper on show.  Any chance of a photo of the back ?

Rough as old boots of course,  but regs broken ? - Maybe not as many as you think. Of course there may be no RCD in the feed to it, and the cable and MCB size may not match, there may be bare wires just out of shot, and a nuclear bomb under the dining table, but from the picture alone, not really a regs issue.

He is right - I'd be upset too if I was paying for that, but from the point of a most unprofessional looking job, not safety.

Mike.

Externally not a lot obviously wrong, maybe the knock out in the socket top is not the right IP rating for the environment.  A squirt of mastic is the lowest acceptable fix for that. 

Cable is clipped or in trunking, route is visible so that's OK.  No primary insulation or copper on show.  Any chance of a photo of the back ?

Rough as old boots of course,  but regs broken ? - Maybe not as many as you think. Of course there may be no RCD in the feed to it, and the cable and MCB size may not match, there may be bare wires just out of shot, and a nuclear bomb under the dining table, but from the picture alone, not really a regs issue.

He is right - I'd be upset too if I was paying for that, but from the point of a most unprofessional looking job, not safety.

Mike.