When you say you are open to comments by e-mail, I'm not sure whether you are also open to comments here. I wish you luck -- I'll check back from time to time and see if you've sold any copies of your e-book.
One suggestion on your opening paragraph. You give a lot of information, but no characterization or drama. You might have better success if you open on a dramatic moment that reveals character, and allow the background information to come out during the course of the story.