First off let me say for the record that I am one of the rare anime viewers that loves CG anime. But just because a studio opts for a 3D approach doesn't mean they can skimp out on coloring. This movie looks like it was done in technicolor. The shading is so poor that the forest scenes look like they were done by one guy using Adobe flash.
The fight scenes are very well done, but they are so few and far between that you have to suffer through the movie just to see them.
This is a dark and tragic story involving prostitution, sex slavery and rampant racism. Every character is a bad person and some varying degree of unlikable. It may be called bright, and be brightly colored, but there are no happy endings to be had here.
As much as I enjoy samurai flicks and cool sword fights, I cannot rate this higher than a 4. It feels unfinished. The lord feels randomly thought out. This is not the best intellectual property and I think Netflix ought to just move on.