red and black with bare CPC?
It's not fine and where do you start when listing the faults???
Extension of the 3 circuits is wrong (should be at the very least inside an adaptable box....i'd crimp/wago rather than chocblok aswell)
No earth sleeving.
Abit unclear as picture is blurred but if one of those circuits is a ringmain (32a mcb feed) then the single 2.5 T&E cable extending it is wrong.
Blank missing in consumer unit
Numerous labels missing
Jubilee clips to extend the main earth?...thats a first for me
no doubt the list will go on when people with sharper eyes have a peek
Some of the points mentioned, although true, are not going to impact the safety of the installation (although, only a thorough inspection and test could prove that it is safe).
With regards to the photo, my only concerns would be:
No enclosure for joint cables. These are not likely to cause any severe damage or injury, unless you mess with them.
Blank missing from DB. This is an extreme hazard if you are feeling your way around the DB in the dark, or fancy sticking your finger in.
The ring main as mentioned, may not be as bad as first looks. To me, the cables used to extend the circuits look bigger than 2.5mm2, so may comply with current carrying capacities. Even if it is 2.5mm2, it is an extremely short run and has a current carrying capacity of 27 amps, and you are unlikely to exceed this amount for extended periods of time. If it is overloaded, it is only going to run warm and reduce the life of the cable. It is not going to burst into flames.
As others have said, get it reported and insist they rectify it promptly. I would also insist on a certificate for the installation.
