Okay, so my novel has a character who is 15 years old at the start, and 16 by the end. It includes coming of age themes and a writing style suitable for YA. It also has brief scenes of rape and attempted rape, a fair amount of graphic violence, and TONS AND TONS OF KILLING (said teenage MC kills literally hundreds of men over the course of the story with her giant sword, and her shield, and her (not so) puny girl hands...). Now, I wouldn't think this a huge problem if the book were to be listed as YA, which it currently is in Smashwords (its short description starts with 'In a brutal world' so fair warning...). However... if I set in the 'Juvenile' category on Amazon, it risks being listed as a CHILDREN'S book.
Should I dare risk setting it in the Juvenile category with a warning about 'adult themes' and hope Amazon properly classifies it as YA, or stick with Fantasy>General and Action-Adventure?