Even the white corner beading on the panelling isn’t fitted right – just a blob of silicone here and there by the looks of it!
In yuor previous photo the panel is cut short of the end bead, then there is that bit of coving thats not flush and wow why use but up 5″ coving to 4″ is beyond me. At least they could renew it all or do away with it.
I’d be complaining to the LA and for warning them you won’t be signing it off.