Looks okay.
My 2 concerns are
1. Is the Shower is fed from the RCD side of the board? It should be but I can't see a label for it. If it isn't then
- move it to a spare RCD protected way
- change the MCB circuit breaker to an RCBO one
- fit a a shower control consumer unit external to the consumer unit. Say £100 to do.
2. main equipotential bonding, can't see any connections from the main earthing terminal off to anything other than the consumer unit. Also check supplementary bonding in bathroom. Say £30 to do if at the same time as some work for (1.) and there are no nasties discovered.
Edited for clarity
My 2 concerns are
1. Is the Shower is fed from the RCD side of the board? It should be but I can't see a label for it. If it isn't then
- move it to a spare RCD protected way
- change the MCB circuit breaker to an RCBO one
- fit a a shower control consumer unit external to the consumer unit. Say £100 to do.
2. main equipotential bonding, can't see any connections from the main earthing terminal off to anything other than the consumer unit. Also check supplementary bonding in bathroom. Say £30 to do if at the same time as some work for (1.) and there are no nasties discovered.
Edited for clarity