If this animation is someone falling headfirst, not tripping over anything, then I would like to point out how much time in the air there is. I think the model’s legs move too high up for the speed it is going and the time it takes to fall.
The arrows dont really show it, but the knees actually go higher, meaning the whole model as well, despite it supposed to be falling.
Also I do think that the rotation may be a bit much