I'm with Colour Republic on this. You can't expect a job to be the same with a massive price difference and I hope you just didn't go for the cheapest "tiler".
However with regards to the job, that's not good.
Slithers in corners
Not plumb
Dot and dabbing tiles
That's a person who has not only had no training, but they've not even be shown the ropes by a tiler on a job on site or whatever.
If they'd have even just read the forum, they'd have done a job much more appealing to the eye and to the standards.
I'm wondering what adhesive that is too. :-/