In Kingpin's flashback, it is obvious that his dad is abusing his mom, but nothing is graphically shown; it's through a bedroom wall and you can only hear.
Maya as a child shoots a woodpecker with a slingshot to see can hit it. She does but her mother heals it but you see it suffering before she does heal it.
Her mother dies in a car crash pretty much right away, but you already know that she's going to die if you're familiar with the character. It's not unexpected.
Main character sees and interacts with her ancestors who are dead, and they are able to see and help her in the present. They do not look ghostlike, they are not technically ghosts, but worth mentioning.
Law enforcement officers are shown in a positive light but they are lighthorsemen (law enforcement established by indigenous tribes) and have a very different cultural and historical context.
Kind of. The camera is underwater for a moment as an artistic intro to a boat being paddled, and you see lots of fish swimming around. It's a bit frenetic