Jamie, Paragraphs are your friend. Not sure about your Chinese comments. Judging by the figures the Chinese community in Sheffield is relatively small, certainly compared to the white, black and South Asian communities.
Having watched it a second time the pacing seemed much better, the companions came across better and Jodie was probably even better than she was first time around, though as others have noted, on occasion she seemed to be trying too hard (but then Tennant did that all the time!)
I don't think this version of Who is particularly any more violent,
however it did feel like some of the deaths were way too disposable, and if Tim Shaw was happy enough to kill X Files guy, salad guy and security granddad, why on earth didn't he just trigger the DNA bombs? That's just really sloppy writing. There are also way too many coincidences. Ryan finds the pod, and his gran and Graham just happen to be on the train with Tim Shaw's target, the same train the Doctor drops into? (I can just about buy the Tardis did this on purpose though seems a trifle extreme!). And then you have Yaz knowing Ryan from school and the fact that, oddly, Tim Shaw's people only seem to hunt in Sheffield...maybe the next Predator film should just feature a Predator hunting shoppers in
Meadowhall?