The workmanship looks fine to me, good spacing on the tiles, neat cut work around the plugs. No poor workmanship there in my opinion 
Colour? Well yes that does not match, but as others have said it's a council property. You rent it from the council? It's their house 
Sorry but I believe if you pay rent then why should you get a sub standard service, if a job is to be done then do it properly, the council create work to use up government funds so why not use them to keep up the condition of the properties they own.
I was amused by this at first, but Mr Skrunts is right. You pay your rent and for that expect a certain level of service in return, like any other business transaction. 
It wouldn't have been a much bigger job to have knocked all the tiles off and redo the lot. It's a bodge and shows a level of disregard from the council/housing association towards their customers! 
Too right Tigger . . total disregard

I work in social housing repair & maintenance & the days of having pride in the job you do have long gone . The reason being that you can only do what the "management" ,in this case , the local authority will let you do . Times for jobs has been cut to the bone, rates for the jobs have been cut to the bone ,we are made to use inferior & sometimes even the incorrect materials .There is a phrase that is used in local authority & housing association letting departments & that is "a lettable standard".
In my area that standard is diabolicaly low . I myself always try to do the best of what is possible with what you have to work with & time allowed . Sometimes I am completely embarrassed by what the authority serveyors have requested we do ,some are totally clueless.
With Kate's tiling , I would not blame the guy who did the work , he's made a fair job of what he has been permitted /told to use & in the time he was allocated IMO. The problem lies with the people who instruct them to do it like that .
Agreed that if you had taken on a tradesman yourself & were expected to pay for it ,you would not be satisfied with a complete mismatch of tile colour . But tiles are always difficult to match once they have been up for more than a year or two . Even plain white tiles have "shade" issues when trying to match up with existing .
Hope this sheds a bit of light on the unfortunate tradespeople that work in this field, most of the time it's really not their fault
