I'd expected more of this, from it's pedigree. The central performances are both excellent, but the storytelling is weak.
It starts off as if it's going to be a bog standard, violent rape revenge tale*, and then changes genre after half an hour to a road movie. There's little nuance or subtlety in the plot, I'm afraid, nor the characterisation: the main villains are over the top in their sadism, perversion and cruelty. Almost every man in the film is depicted as either a rapist, a murderer, or both (which to my mind undermines the reality behind the story - it's so cartoonish that a significant section of the audience will probably just roll their eyes and dismiss it, rather than consider just how brutal the colonial clearances actually were). Meanwhile the heroine goes from avenging angel to weak and hysterical, whenever the plot needs her to (because how else would the audience understand that doing violence changes people!).
It feels a bit like the film-makers didn't trust the audience to understand what they were trying to say about the impact of violence on both the perpetrators and the victims, and about the horrors of the past that still ripple into the present, so they just hit us over the head with it. Repeatedly. And then threw in some silly dream sequences just to make it even less subtle. Sometimes, it feels like it's written by a high school student, with its over-earnest heavy footedness.
The movie does manage to wrap up decently (I definitely felt the last 20 minutes were the strongest and most mature part of the movie), but it's a bit of a slog at times to get there.
*Trigger warning - the opening 15-20 minutes includes a long and brutal scene of gang rape and casual violence, and there will be several similar, shorter scenes later in the film.