I rather like where this is headed. A few things though.
The intro is a little rough to read because you describe things in too much detail. The spires are quite interesting to picture, but when you get down to the man's shoes you're going a bit too far.
Also, just plain description can get a little boring without anything happening, so you want to avoid doing this right off the bat. You're trying to hook the reader in your intro, and you'll have a lot of trouble doing that with just descriptions.
The best way to describe something is to do it as a way to embellish actions, rather than just pull out chunks description and set it aside. For example, "The house was red, had a black roof, and was surrounded by brown grass," is very boring. "Looking around, he recognized the red house immediately-- he had helped apply the black tar to the roof last summer after all. He stepped into the front yard and felt the brown grass crunch beneath his toes," -- This is way better because the description flows along side the action. There's no separate description and action parts. Just something to think about.
Beyond that, I found this a rather enjoyable read. Unreal dodging the cannon blasts and flying through the air like that was good fun, and of course I love Natalia. Best of luck reading this and I look forward to the next part.