The opening lines were horrible, I only barely got past them. Overly wordy and unclear; if you want to use fancy language then pick something to write about - describe the setting or the characters. If you want to be mysterious then use simple language and move at a fast pace to keep the reader interested.
As it stands you've got shit loads of detail about nothing at all, and no it doesn't give us an insight into the characters mind because we don't have a clue who the character is or what his perceptions are in relation too. The first few sentences could be true of him adrift at sea, lost in a forest, or a high born noble wandering through the palace grounds on a feast day.
Of course a few bad sentences aren't much to worry about, except that they're the first of the damn book; the first taste the reader has of you as a writer and what this story is. If this book was on a shelf and I'd picked it up - I'd read the back to get the genre, and then the first paragraph to get the style and from your first paragraph I'd put the book straight back - theres more than enough books in the shop for me to find something to read.
Afterwards things aren't much better - you're giving us details of all the wrong things. We don't care about the damn pleasure-den unless it's going to be important to the story. What you should be telling us about is how the main character reacts to the pleasure den, and how the girls / security / owner / customers of the pleasure den react to him. Give us some interaction with the world, not just vague descriptions of it.
Then, finally, things begin to pick-up - people are after you. Ok, so it's an utter cliche and if you want to stand out then you're going to have to do a fucking amazing job of it, but at least its some meat to get stuck into. We've got plot, we've got new characters, we've got history for the main character. Theres conflict, tension, and something for the reader to anticipate (the resolution of this conflict), great, good, cool... now take it somewhere interesting (I really hope you do).
The shopping section is... meh.
It holds onto the tension well, it moves us forwards, we're still reading and we still want to know whats next. But theres no life to this lines. He doesn't even speak to the shop keepers? Does anyone speak? Does anyone react at all?
The bit with the security guy and the home-made gun was a good try, but it needs a second pass - make him more interesting, have him do more than just "keep[] his hands on the weapon". Over-all this was a good chance to show us how the main character interacts with the other people of this world, and what the people of this world are like, but it's not taken (take care not to slow down and lose the tension though).
(Later you have the 'training' talk in a strange, guttural dialect to fool the agents... we've never heard how the locals speak before, so we have to assume that he's imitating them. Have the shoppe speak, or do something a bit different, like maybe the guy with the home made gun is actually quite a chatter-box

)
The rest - decent. Good detail, focus is right; the enemies are dangerous, the main character more so. Theres a little bit too much of the "omg my training is teh so awesome sauce, it scares me!" - don't tell us about it, show us. And you do show us, taking down the tail was a a well executed move, and its told well: we're in no doubt that he's a bad-ass (just cut most of that internal monologue about it).
Overall I'd say no, I wouldn't read any more - but it's a close thing. If you cut the fluff, give us some more character work and keep the sense of danger then I'd at least check out the next chapter to see if you've got an interesting story.