Just to clarify: the Jack Nicholson clip was source footage uploaded by the original creator, not generated by Kling O1.
The Trump clip shows distortion after combining multiple reference characters, which was clearly noted in the video. The goal here was to highlight multi-reference composition, not perfect visual realism.
If absolute visual quality is the priority, models like Veo 3 may perform better, this is also an area Kling O1 continues to improve.