First of all, you use fuck a lot. That translates to a lot of frustration, so if that was your intent, it succeeds.
"We even get to ride on top of the container, during it's decent…" first of all, wrong form of 'its' it's means 'it is' whereas its is the possessive form of it. The word you are looking for at the end is descent.
I'm about halfway through, and the pacing so far is good.
Okay, and finished. I think it's a very good tale. I like the pacing and the fear you feel going through it, this almost dystopian London. It's very creepy, but not in an overdone way. I suggest getting a few more eyes on it. #thecritters is a good place to get some more people, most of the crit team lurks there.