I did not download it, but a little feedback on what little I saw.
If you ever want to sell this or another book. Put some better effort into the cover. All you have is a beach scene without even any text on it.
To say your description of the book is minimalistic is an understatement. I am not insulting you, this may be a very good story, but it is an automatic turn off to see little effort put into presentation, even for free.