Reason #3: Your characters aren't (obviously) yummy
6 Reasons Your Book Isn't Selling--and How Universal Fantasy Can Solve Them
I’m a huge fan of a Beauty and the Beast trope. Give me a book with characters in this situation, and if I have the time, I’ll read about those characters in my favorite situation.
But give me a wounded beast who avenges his father by kidnapping the sister of his enemy—therefore ripping her out of her ill-fitting world, then forget about having the time…