1. Nothing really sets it apart from other novels in this genre.
I thought the story was original, interesting, and engaging. It was original to me. I will admit that I haven't read as much from the Thriller genre - particularly this type of thriller - to be definitive on this. Having said that, what usually makes a novel stand out for me is a set of unique and interesting characters - so perhaps this is where they are coming from? That said, I read tons of stuff with average characters and that never stopped them from being published.
2. Not enough dazzling scientific and technical details.
I disagree with this. Too much of that and I will tune out. Give me enough details to believe and leave anything more technical to my imagination.
3. Too derivative and predictable.
I would have to read more from the genre to determine if I thought it was derivative, but I didn't feel that way when I read it. As far as predictable, I couldn't predict where the journey was ultimately going to lead me and I thought the revelation of the Ark was an interesting interpretation. I did, however, always assume the heroes were going to win in the end, as they usually do in this type of story. I wonder if losing a good character along the way might have made it less predictable?
4. Protagonist not sympathetic enough.
This just comes down to character development. I think if you continue to work on character, this will eventually go away for you. Your plots are engaging, your characters are competent. Now they just need to reach out to the reader a little more on the emotional level.
5. Not fresh enough.
I disagree, but this is really just another way of saying #3 and #1.
6. Too much action.
Obviously, this publisher has never watched 24! Now there is a show that has so much action that I stop caring about the immediate crisis because I know as soon as it is resolved there will be another crisis that is even worse and that will keep happening until the season concludes. To tell the truth - I loved 24 for the first few seasons and still watch, but the fact that there is so much action has now taken away from the punch of the story. I don't think that is the case with the Ark. I really think this is just a disguised way of saying "give us a little more character."
7. Villain's motive too unbelievable.
I don't think the villain's motive was unbelievable. I do think that if the villain was fleshed out more, we would understand his motives better. But I certainly believe someone might feel the way he feels in the modern world.
After reading the list a second time, I really think everything (except #2, which I disagree with completely) could be fixed with just a little more investment in original characters. I agree that this is an area that could be improved, but I don't think the characters were so flawed to prevent publication. I have read some books with characters I just wanted to take out with a bazooka because they were so flat and uninspiring and they acted in ways that didn't make sense because that is what the plot dictated.
I think if in your next novel you take a pause to really think about what you love about your characters and what you hate about them, what matters to them and what makes them interesting and different, then try to let some of that slip out here or there amidst the action, that you will take care of all of these criticisms in one fell swoop.
Vonda