Why not use openpose-style skeleton.

[y6216886]

Thank you for your excellent work. I have a question, since openpose-style skeleton refers to a skeleton with hand joints, a neck joint that connects nose joint, left and right shoulder joints. This topology is more easy-to-understand, and contains more details about hands, and other body parts. I wonder why you do not use the openpose style.
A example of openpose style is in the following image: